GE2602_Single_Pages

HIGH JEWELRY

AUCTION IN GENEVA

12 MAY 2026

2 PM

FINE JEWELRY

29 APRIL–14 MAY 2026

Sotheby’s

2 Rue François-Diday 1204, Genève

sothebys.com

FOLLOW US @SOTHEBYS #SOTHEBYSJEWELS

EXHIBITION

MANDARIN ORIENTAL, GENEVA 1 QUAI TURRETTINI, 1201

ALL EXHIBITIONS FREE AND OPEN TO THE PUBLIC

Friday 8 May 10am – 6pm

Saturday 9 May 10am – 6pm

Sunday 10 May 10am – 6pm

Monday 11 May 10am – 6pm

IMPORTANT NOTICE

POST-SALE SERVICES & COLLECTION OF PURCHASES

Purchased lots can only be collected after payment is received in full and cleared funds (please refer to paragraph 4 of Information to Buyers) and appropriate identification has been provided.

Post-sale services and property collection will be available at Mandarin Oriental, Geneva, 1 Quai Turrettini, 1201 Genève on the day of the sale and until Wednesday, 13 May (collection hours: 10:00 – 17:00).

From Thursday 14 May, all Post-Sale Services and property collections will be available at Sotheby’s Geneva, 2 rue François-Diday, 1204 Genève (collection hours: 9:30 - 12:30 and 13:30 - 17:30, from Monday to Friday).

POST-SALE SERVICES & ENLÈVEMENT DES LOTS

Les lots achetés ne pourront être enlevés qu’une fois le paiement effectué et après remise à Sotheby’s de tout document permettant de s’assurer de l’identité de l’acheteur (veuillez vous référer aux paragraphes concernant les Obligations des Acheteurs).

Tous les lots pourront être retirés pendant la vente, mercredi 13 novembre au Mandarin Oriental, Geneva, 1 Quai Turrettini, 1201 Genève (horaires de collecte : 10:00–17:00).

TO LEARN MORE ABOUT THE PROPERTY IN THIS SALE, PLEASE VISIT SOTHEBYS.COM/ GE2602

À partir du jeudi 14 novembre, le retrait des lots pourra se faire directement dans les locaux de Sotheby’s à Genève au 2 rue FrançoisDiday, 1204 Genève (horaires de collecte: 9:30 - 12:30 et 13:30 - 17:30 du lundi au vendredi).

Dirigé par le Ministère de Maître Marco Breitenmoser, Huissier Judiciaire For

INTERNATIONAL SPECIALISTS

Quig Bruning

Senior Vice President, Global Head of Jewelry New York +1 212 606 7392 quig.bruning@sothebys.com

Catharine Becket

Senior Vice President, Global Head of High Jewelry New York +1 212 894 1027 catharine.becket@sothebys.com

SWITZERLAND

Jessica Wyndham Director, Head of High Jewelry, Europe, Geneva +41 22 908 4841 jessica.wyndham@sothebys.com

Vincent Vanhoucke Associate Specialist Geneva +41 22 908 4882 vincent.vanhoucke@sothebys.com

Magali Teisseire Director, Jewellery, France Paris +33 (0)1 53 05 52 37 magali.tesseire@sothebys.com

Sara Miconi Director, Jewellery, Italy Milan +39 02 2950 0201 sara.miconi@sothebys.com

MIDDLE EAST

Graeme Thompson Senior Director, Senior International Specialist, Jewellery Dubai +44 7921 025230 graeme.thompson@sothebys.com

NETHERLANDS

Jessica Koers Senior Director, Senior Specialist, Jewellery Amsterdam jessica.koers@sothebys.com

Emily Barber

Senior Director, Head of Fine Jewelry, EMEA London +44 20 73947 5444 emily.barber@sothebys.com

Andres White Correal Chairman, Jewellery +44 7921 685 721 andres.whitecorreal@sothebys.com

Marie-Cécile Cisamolo Director, Specialist Geneva +41 22 908 4816 marie-cecile.cisamolo@sothebys.com

Oliver Wagner Consultant Geneva +41 79 202 28 94 olivier.wagner.consultant@sothebys.com

Tifenn Bouric Deputy Director, Head of Sale, Fine Jewelry, Paris +33 (0)1 53 05 52 01 tifenn.bouric@sothebys.com

Alexandra Mayr Cataloguer, Milan +39 02 2950 0349 alexandra.mayr@sothebys.com

Paul Redmayne Senior Director, Luxury Sales, Dubai +971 58 560 7518 paul.redmayne@sothebys.com

Nikita Binani Director, Head of Sale, Fine Jewelry London +44 20 7293 6640 nikita.binani@sothebys.com

Frank Everett Vice Chairman, Jewelry Americas New York +1 212 894 1902 frank.everett@sothebys.com

Jemima Chamberlain-Adams Deputy Director, Head of Sale, Fine Jewelry, Geneva +41 22 908 44760 jemima.chamberlain-adams@sothebys.com

Pauline Duval Associate Specialist Paris

+33 (0)1 53 05 53 37 pauline.duval@sothebys.com

Saumya Khimji Associate Specialist Dubai saumya.khimji@sothebys.com

Tabitha Downer

Deputy Director, Specialist, Jewellery London +44 20 7293 5023 tabitha.downer@sothebys.com

Hope Francis Cataloguer

London

+44 20 7293 5201 hope.francis@sothebys.com

SALE NUMBER

GE2602 “FLAMINGO”

ABSENTEE BIDS

+41 22 908 4888 bids.geneva@sothebys.com

PRE-SALE CLIENT EXPERIENCE

Edward Hall-Smith edward.hallsmith@sothebys.com +41 22 908 4822

ACCOUNTS RECEIVABLE

For invoices and payment inquiries please contact ch.cx@sothebys.com

Veronika Adjoubei Clients Accounts Receivable Manager ch.cx@sothebys.com

CLIENT EXPERIENCE

For delivery and collection, please contact CH.CX@sothebys.com

AUCTION AND EXHIBITION INFORMATION

Corinne Celeyron corinne.celeyron@sothebys.com +41 22 908 4835

CONDITION REPORTS

Alexandra Burrus alexandra.burrus@sothebys.com +41 22 908 47 06

Sotheby’s Jewellery department is pleased to offer to potential purchasers Condition Reports of the lots in this catalogue.

A Condition Report is an opinion describing in more depth the lot with regards to, but not limited to, the general condition, quality of stones and/or other relevant information.

Conditions reports are also available on our website sothebys.com

PRESS ENQUIRIES

Bruno Barba bruno.barba@sothebys.com +44 20 7293 5441

Image credit: Marc Kuchen, IrisCreactive

IMPORTANT NOTICES

For all lots marked with a ○ , △ , □ , ⋑ or please refer to the guide to Buying at Auction.

For all lots marked † please refer to the VAT section in the guide to Buying at Auction.

For all lots marked ◉ please refer to the Important Notices at the back of this catalogue.

References in the catalogue descriptions to certificates or reports issued by gemmological laboratories are provided only for the information of bidders, and Sotheby’s does not guarantee and accepts no responsibility for the accuracy, terms or information contained in such certificates or reports. Please also note that laboratories may differ in their assessment of a gemstone (including its origin and presence, type and extent of treatments) and their certificates or reports may contain different results.

Various manufacturers may not issue certificates of authenticity upon request. Sotheby’s is not under an obligation to furnish the purchase with a certificate of authenticity from the manufacturer at any time. Failure of a manufacturer to issue a certificate will not constitute grounds to rescind the sale under any circumstances.

Buyers from outside Switzerland should note that local sales taxes or use taxes may become payable upon import of items following purchase (for example, the Use Tax payable on import of purchased items to certain

states of the USA). Buyers should obtain their own advice in this regard.

In the event that Sotheby’s ships items for a purchaser in this sale to a destination within a US state in which Sotheby’s is registered to collect sales tax, Sotheby’s is obliged to collect and remit the respective state’s sales / use tax in effect on the total purchase price (including hammer price, buyer’s premium and any requested shipping services including insurance, as applicable) of such items, regardless of the country in which the purchaser resides or is a citizen. Where the purchaser has provided Sotheby’s with a valid Resale Exemption Certificate prior to the release of the property, sales / use tax will not be charged. Clients who wish to provide resale or exemption documentation for their purchases should contact Post Sale Services.

Please note that, due to recently imposed trade restrictions on certain diamonds and diamond jewellery, certain lots cannot be shipped outside of the country of sale. For further information on specific lots please contact the department. As per Sotheby’s Conditions of Business for Buyers inability to export a purchased lot will not justify cancellation or rescission of the sale or excuse any delay in payment.

PR OPERTY FROM A DISTINGUISHED COLLECTOR

(LOTS 501-516)

The following casket of jewels (lots 501 to 516), represents a lifetime of collecting. Each piece was carefully and purposefully selected by an elegant, eloquent and erudite Italian lady who was guided by her refined taste and quest for beauty. The collection is both a reflection of her artistic appreciation as well as her personal history and the emotional milestones that marked her life. As such she transformed mere adornment into a highly personalised form of expression, showcasing her love for and knowledge of the best 20th -century design and craftsmanship

from a panoply of prestigious international houses including Cartier, Van Cleef & Arpels, Boucheron, Chaumet, Bulgari, Tiffany & Co. and David Webb. This finely curated ensemble reflects the collector’s assured taste and sophisticated artistic sensibilities.

Sotheby’s are honoured to be presenting this collection in our High Jewelry and Fine Jewelry sales this season, in Geneva. To see the rest of the collection please go to Sothebys.com to view lots in the Fine Jewelry sale.

501

PROPERTY FROM A DISTINGUISHED COLLECTOR

CARTIER

RUBY, EMERALD AND DIAMOND BROOCH

Designed as a temple, the dome and stylobate pavé-set with brilliant-cut diamonds, the entablature and stairs set with baguette diamonds of yellow tint, the columns decorated with calibrécut rubies, emeralds and baguette diamonds, topped by a collet-set pear-shaped emerald, signed Cartier, numbered, French maker’s mark and assay mark for gold; 1950s.

Please note that the diamonds of yellow tint have not been tested for natural colour origin.

✝ CHF 10,000-15,000

US$ 13,000-20,000

502

PROPERTY FROM A DISTINGUISHED COLLECTOR

VAN CLEEF & ARPELS

PAIR OF GEM-SET AND DIAMOND ‘ÉPOUVANTAIL’ BROOCHES

Designed as scarecrows embellished with cabochon sapphires, rubies, chalcedony and brilliant-cut diamonds, signed Van Cleef & Arpels, numbered, French maker’s and assay marks for gold; 1960s.

✝ CHF 20,000-30,000

US$ 26,000-38,000

PR OPERTY FROM A DISTINGUISHED COLLECTOR

(LOTS 501-516)

PROPERTY FROM A DISTINGUISHED COLLECTOR

VAN CLEEF & ARPELS

GOLD AND DIAMOND ‘CHEVALERIE’ SAUTOIR

Composed of textured gold oval and bar links, embellished with brilliantcut diamonds, length approximately 720mm, detachable to be worn as four bracelets, each length approximately 150, 180, 180 and 210mm respectively, signed Van Cleef & Arpels NY, numbered, French maker’s mark and assay mark for gold; 1970s.

✝ CHF 35,000-55,000

US$ 44,000-70,000

503 (not to scale)

PROPERTY FROM A DISTINGUISHED COLLECTOR

DAVID WEBB

ENAMEL, RUBY AND DIAMOND BANGLE

Designed as two opposing tigers applied with white and black enamel, the eyes set with cabochon rubies, the heads, collars and ring decorated with brilliant-cut diamonds, inner circumference approximately 155mm, signed David Webb.

✝ CHF 15,000-25,000 US$ 19,000-32,000 alternate view

PR OPERTY FROM A DISTINGUISHED COLLECTOR

(LOTS 501-516)

505

PROPERTY FROM A DISTINGUISHED COLLECTOR

CARTIER

GOLD, ENAMEL, ONYX AND EMERALD ‘PANTHÈRE’ BANGLE

Designed as a pair of opposing panthers, applied with black enamel spots, polished onyx noses and pear-shaped emerald eyes, inner circumference approximately 160mm, signed Cartier, numbered.

✝ CHF 30,000-50,000

US$ 38,000-65,000

506

PROPERTY FROM A DISTINGUISHED COLLECTOR CARTIER

PAIR OF GOLD, EMERALD AND ONYX ‘PANTHÈRE’ PENDENT EARRINGS

Of doorknocker design, featuring detachable gold loops held between the teeth of a panther, the eyes enhanced by pear-shaped emeralds, the nose set with onyx cabochons, post and hinged back fittings, signed Cartier, numbered, French maker’s mark and assay marks for gold.

✝ CHF 15,000-25,000

US$ 19,000-32,000

507

PROPERTY FROM A DISTINGUISHED COLLECTOR CHAUMET

GOLD AND DIAMOND BRACELET

Composed of bombé links, the front decorated with an interlaced doubleknot motif pavé-set with brilliantcut diamonds, inner circumference approximately 155mm, signed Chaumet, maker’s mark for Chaumet; circa 1980.

✝ CHF 10,000-15,000

US$ 13,000-20,000

508

PROPERTY FROM A DISTINGUISHED COLLECTOR

DAVID WEBB

GOLD SAUTOIR

Composed of a series of hammered gold links, length approximately 690mm, signed Webb.

✝ CHF 15,000-25,000

US$ 19,000-32,000

509

PROPERTY FROM A DISTINGUISHED COLLECTOR

CHAUMET

GOLD, LAPIS LAZULI AND DIAMOND SAUTOIR

The detachable polished lapis lazuli pendant capped by a textured gold surmount embellished with brilliant-cut diamonds, to a fancy-link chain, length approximately 710mm, adjustable, pendant signed Chaumet, numbered, French maker’s mark; 1970s.

✝ CHF 10,000-15,000

US$ 13,000-20,000

510

PROPERTY FROM A DISTINGUISHED COLLECTOR

TIFFANY & CO.

PAIR OF LAPIS LAZULI, MOTHER-OF-PEARL AND DIAMOND PENDENT EARCLIPS

The detachable pendants of geometric design decorated with lapis lazuli and mother-of pearl inlay, framed by singlecut diamonds, to a lapis lazuli surmount of stylized knot design, signed T.&Co.; 1990s.

✝ CHF 6,000-8,000

US$ 7,500-10,000

PR OPERTY FROM A DISTINGUISHED COLLECTOR

(LOTS 501-516)

511

PROPERTY FROM A DISTINGUISHED COLLECTOR

TIFFANY & CO.

THREE MOTHER-OF-PEARL, ONYX AND LAPIS LAZULI BANGLES

Respectively decorated with lapis lazuli, mother-of-pearl or onyx animal print spots, inner circumferences approximately 155mm (lapis lazuli and onyx) and 160mm (mother-of-pearl); each signed Tiffany & Co.; 1990s.

✝ CHF 12,000-18,000

US$ 15,000-22,000 512

512

PROPERTY FROM A DISTINGUISHED COLLECTOR

TIFFANY & CO.

PAIR OF MOTHER-OF-PEARL AND ONYX EARCLIPS

Of geometric and bombé design, each inlaid with mother-of-pearl and polished onyx, signed Tiffany & Co.

✝ CHF 4,000-6,000

US$ 5,000-7,500

PR OPERTY FROM A DISTINGUISHED COLLECTOR

(LOTS 501-516

PROPERTY FROM A DISTINGUISHED COLLECTOR CARTIER

SAPPHIRE AND DIAMOND DEMI-PARURE

Comprising: a necklace composed of six graduated rows of sapphire beads, to a clasp of dragon design set with pear- and marquise-shaped sapphires highlighted with brilliant-cut diamonds, length approximately 400mm, and a bracelet of similar design, length approximately 190mm, signed Cartier Paris, numbered, maker’s marks for Cartier and French assay marks for gold.

✝ CHF 90,000-120,000

US$ 110,000-150,000

PROPERTY FROM A DISTINGUISHED COLLECTOR

BOUCHERON

SAPPHIRE AND DIAMOND BANGLE

Each terminal of geometric design, set with calibré-cut sapphires and old European-cut diamonds, inner circumference approximately 150mm, signed Boucheron Paris, French maker’s mark and assay marks for gold and platinum; 1940s.

✝ CHF 35,000-55,000 US$ 44,000-70,000

view

PR OPERTY FROM A DISTINGUISHED COLLECTOR

(LOTS 501-516)

516

515

PROPERTY FROM A DISTINGUISHED COLLECTOR

CARTIER

DIAMOND BROOCH

Featuring an openwork panel of basketweave design within a foliate border, millegrain-set throughout with old-European and single-cut diamonds, signed Cartier Paris, Londres, New York, French assay mark for platinum; circa 1910 and later.

This jewel was likely designed as a plaque de cou to be worn on a choker and was later converted into the present brooch.

✝ CHF 30,000-50,000

US$ 38,000-65,000

PROPERTY FROM A DISTINGUISHED COLLECTOR

CARTIER

DIAMOND BROOCH

Of floral design, the flowerhead centring a step-cut diamond, the petals and leaves pavé-set with old European-, brilliant- and single-cut diamonds, to an articulated baguette diamond stem, signed Cartier Paris, French maker’s mark and assay mark for gold, case stamped Cartier; circa 1950.

✝ CHF 80,000-120,000

US$ 100,000-150,000

517

BULGARI

RUBY AND DIAMOND BROOCH

Of floral design, set with circular-cut rubies and brilliant-cut diamonds, signed Bvlgari; circa 1960.

Accompanied by a gemmological report.

✝ CHF 30,000-50,000

US$ 38,000-65,000

518

PAIR OF DIAMOND EARRINGS

Set with brilliant-cut diamonds weighing 5.06 and 5.04 carats respectively, fitted with posts.

Accompanied by GIA reports no. 2235917368 and no. 5231917465, stating that the diamonds are I and J Colour, SI1 Clarity respectively.

✝ CHF 56,000-110,000

US$ 70,000-140,000

□ 519 NO RESERVE

PINK SPINEL AND DIAMOND RING

Featuring an oval pink spinel weighing 4.08 carats within a brilliant-cut diamond border, to shoulders pavé-set with similarly shaped diamonds, size 53

Accompanied by Gübelin report no. 26040065, dated 22 April 2026, stating that the spinel is of Tanzanian origin, with no indications of heating.

✝ CHF 9,500-14,000

US$ 12,000-18,000

FORMERLY IN THE COLLECTION OF COUNTESS PATRIZIA DE BLANCK Y MENOCAL

ANSUINI

SAPPHIRE AND DIAMOND BROOCH

Of stylised floral design decorated with cushion-shaped sapphires highlighted by brilliant-cut and baguette diamonds, unsigned; 1960s

Accompanied by a gemmological report.

✝ CHF 45,000-75,000

US$ 58,000-95,000 520

COUNTESS PATRIZIA DE BLANCK Y MENOCAL

Countess Patrizia De Blanck y Menocal is the descendant of an ancient Venetian family as well as of the Blanck y Menocal family, a prominent Spanish noble house that owned the luxurious villa ‘Hermitage’ on the Côte d’Azur and many sprawling sugar cane and tobacco plantations in Cuba.

Patrizia’s father Guillermo de Blanck y Menocal, a multifaceted man of letters, passionate about music, theatre and history, decided to embarked on a diplomatic career that brought him prestige in his various roles as Ambassador or Minister. Her childhood was spent between Italy and Cuba where her uncle Mario García y Menocal, called ‘Il Caudillo’, was elected President.

Patrizia finally settled in Italy in 1958, where she started a successful career in the newly emerging Italian television industry. Since then, she has appeared as a regular guest on many tv shows and radio programs over the course of several decades.

EMERALD RING

Set with a step-cut emerald weighing 10.36 carats, size 61, illustrated unmounted.

Accompanied by AGL report no. 1153299, dated 15 January 2026, stating that the emerald is of Zambian origin, with a minor amount of oil in fissures; together with a gemmological report.

✝ CHF 30,000-70,000

US$ 36,000-88,000 522

UNMOUNTED ALEXANDRITE

The oval alexandrite weighing 6.26 carats. Accompanied by an SSEF report.

✝ CHF 40,000-55,000

US$ 50,000-70,000

EMERALD AND DIAMOND PENDENT NECKLACE

The front featuring a detachable pendant set with a hexagonal carved emerald within a frame of marquise-shaped and pavé-set brilliant-cut diamonds, to a brilliant-cut diamond necklace suspending a fringe of drop-shaped emeralds capped by similarly shaped diamonds, length approximately 470mm.

Accompanied by SSEF report no. 152547, dated 11 March 2026, stating that ten emeralds are of Colombian origin, two emeralds of Zambian origin, with a moderate amount of oil in fissures.

✝ CHF 65,000-95,000

US$ 80,000-120,000

524

BULGARI

GOLD, EMERALD AND DIAMOND ‘SERPENTI’ BRACELET

Designed as a coiled serpent with pearshaped emerald eyes, its head and tail set with marquise-shaped and brilliantcut diamonds, the scales accented by circular-cut emeralds and brilliantcut diamonds, inner circumference approximately 170mm, expandable, signed Bvlgari, numbered, Italian maker’s mark and assay mark for gold.

✝ CHF 140,000-180,000

US$ 180,000-230,000

525

BULGARI

EMERALD AND DIAMOND RING

Featuring a cushion-shaped emerald weighing 2.93 carats, to a bombé mount embellished with baguette diamonds, size 51, signed Bvlgari, Italian maker’s and assay marks for gold.

Accompanied by SSEF report no. 107318, dated 27 May 2019, stating that the emerald is of Colombian origin, with no indications of clarity modification, together with an updated SSEF report.

✝ CHF 48,000-65,000

US$ 60,000-80,000

BULGARI

FANCY INTENSE YELLOW DIAMOND AND DIAMOND RING

Of toi et moi design, set with an octagonal step-cut fancy intense yellow diamond weighing 5.70 carats, and a cut-cornered square step-cut diamond weighing 7.11 carats, size 51, signed Bvlgari.

Accompanied by GIA report no. 2235901613, dated 13 March 13 2026, stating that the diamond weighing 5.70 carats is Fancy Intense Yellow, Natural Colour, SI1 Clarity; together with GIA report no. 5232901619, dated 13 March 13 2026, stating that the diamond is G Colour, VS1 Clarity.

✝ CHF 120,000-200,000

US$ 150,000-250,000 526

□ 527 NO RESERVE

EMERALD AND DIAMOND RING

Featuring a step-cut emerald weighing 12.44 carats, flanked by a pair of tapered baguette diamonds, size 52.

Accompanied by Gübelin report no. 21072048, dated 17 September 2021, stating that the emerald is of Colombian origin, with no indications of clarity enhancement.

✝ CHF 48,000-65,000

US$ 60,000-80,000

VERY FINE UNMOUNTED ALEXANDRITE

The unmounted cushion-shaped alexandrite weighing 29.41 carats.

Accompanied by an SSEF report.

✝ CHF 190,000-280,000

US$ 240,000-350,000

DIAMOND BRACELET

Composed of step-cut diamonds weighing a total of 25.17 carats, length approximately 177mm.

Accompanied by 25 GIA reports, dated 20 August 2025 to 22 January 2026, stating that the diamonds, weighing 1.02 to 1.00 carat, are D to F Colour, VVS1 to VS2 Clarity.

✝ CHF 48,000-80,000

US$ 60,000-100,000

□ 530 NO RESERVE

DIAMOND RING

Continuously set with step-cut diamonds weighing a total of 14.10 carats, size 52½

Accompanied by 14 GIA reports, dated 6 August 2025 to 8 January 2026, stating that the diamonds, weighing 1.03 to 1.00 carat, are D to F Colour, VVS1 to VS2 Clarity.

✝ CHF 32,000-48,000

US$ 40,000-60,000

531

EMERALD AND DIAMOND BRACELET

Composed of nine step-cut emeralds weighing a total of 11.40 carats, spaced by similarly shaped diamonds weighing a total of 10.05 carats, length approximately 177mm.

Accompanied by nine Gübelin reports, dated 25 October 2023 to 16 March 2026, stating the emeralds weighing 1.43 to 0.96 carat, are of Colombian origin, with no indications of clarity enhancement; together with 20 GIA reports, dated 22 March to 13 September 2025, stating that the diamonds weighing 0.51 to 0.50 carat are G Colour, VS1 to VS2 Clarity.

✝ CHF 150,000-220,000

US$ 180,000-280,000

DIAMOND NECKLACE

Featuring a row of graduated square step-cut diamonds weighing a total of 77.68 carats, length approximately 415 mm.

Accompanied by 67 GIA reports, dated 25 November 2024 to 10 December 2025, stating that the diamonds, weighing 3.00 to 1.00 carats, are D to F Colour, Internally Flawless to VS2 Clarity.

✝ CHF 180,000-250,000

US$ 220,000-320,000

533

PAIR OF RUBY, COLOURED DIAMOND AND DIAMOND EARRINGS

Featuring oval rubies weighing 2.93 and 2.76 carats respectively, within an openwork surround designed as a stylised plume set with marquiseshaped diamonds, accented by brilliantcut diamonds and diamonds of pink tint, fitted with posts.

Accompanied by AGL reports no. 1130535 and no. 1130534, dated 3 April 2023, stating that the rubies are of Burmese origin, with no indications of heating; together with two gemmological reports.

Please note that the diamonds of pink tint have not been tested for natural colour origin.

✝ CHF 150,000-230,000

US$ 190,000-290,000

534

GRAFF

DIAMOND RING

Set with a brilliant-cut diamond weighing 5.03 carats, between tapered baguette diamond shoulders, size 50, signed Graff, numbered, maker’s mark for Graff, British Hallmarks for platinum, pouch stamped Graff.

Accompanied by GIA report no. 2195849828, dated 27 March 2023, stating that the diamond is D Colour, VVS1 Clarity, Excellent Symmetry, together with a working diagram stating that the diamond may be Internally Flawless after minor repolishing; GIA report no. 2195849828, dated 20 November 2018, stating that the diamond is D Colour, Flawless, together with a type IIa classification; and copies of a Graff certificate of authenticity and of a replacement valuation.

✝ CHF 120,000-160,000

US$ 150,000-200,000

535

CARTIER ONYX, RUBY, EMERALD AND DIAMOND ‘PANTHÈRE’ NECKLACE

Designed as a pavé-set brilliant-cut diamond panther with onyx spots and emerald eyes, resting on an onyx hoop, to a link-chain set with brilliant-cut diamonds and cabochon rubies, length approximately 410mm, signed Cartier, numbered, maker’s mark for Alain Foubert, French assay mark for platinum.

✝ CHF 110,000-160,000

US$ 140,000-200,000 535 536

536

HARRY WINSTON

PAIR OF DIAMOND EARCLIPS

Set with brilliant-cut diamonds weighing 3.86 and 3.82 carats respectively, unsigned, partial maker’s marks, case stamped Harry Winston.

Accompanied by GIA reports no. 1232919756 and no. 1232919740, stating that the diamonds are G Colour, VS2 and SI1 Clarity respectively.

✝ CHF 48,000-80,000

US$ 60,000-100,000

A DIPLOMATIC WEDDING GIFT

This pair of diamond earclips was presented as a wedding gift by a head of state to the bride of a diplomat who would go on to serve as Ambassador of the Ivory Coast to Switzerland (1971–1978), and thence it was passed by descent.

537

DIAMOND RING

Set with a step-cut diamond weighing 8.99 carats, between tapered baguette diamond shoulders, size 53, maker’s mark.

Accompanied by GIA report no. 1172570121, dated 6 April 2016, stating that the diamond is F Colour, VVS2 Clarity.

✝ CHF 150,000-220,000

US$ 180,000-280,000

538

HARRY WINSTON

PAIR OF NATURAL PEARL AND DIAMOND EARCLIPS

Set with a grey button-shaped natural pearl measuring 12.92 - 13.19 x 10.56mm and a white button-shaped natural pearl measuring 12.74 - 13.22 x 11.55mm respectively, within an undulating border of tapered baguette diamonds, signed Winston, maker’s marks for Jacques Timey.

Accompanied by SSEF reports no. 140103 and no. 140102, dated 16 August 2024, stating that the pearls were found to be natural, saltwater.

✝ CHF 65,000-100,000

US$ 80,000-120,000

A DIPLOMATIC WEDDING GIFT

DIAMOND BRACELET

Designed as a graduated row of stepcut diamonds alternating with baguette diamonds, length approximately 170mm, unsigned, maker’s mark for Jacques Timey, case stamped Harry Winston; circa 1970.

✝ CHF 48,000-80,000

US$ 60,000-100,000

This diamond bracelet was presented as a wedding gift by a head of state to the bride of a diplomat who would go on to serve as Ambassador of the Ivory Coast to Switzerland (1971–1978), and thence it was passed by descent.

RUBY AND DIAMOND RING

Set with a cushion-shaped ruby weighing 3.19 carats within an oval diamond surround, the shoulders accented by triangular diamonds, size 52, partial French maker’s and assay marks for platinum.

Accompanied by SSEF report no. 153727, dated 14 April 2026, stating that the ruby is of Burmese origin, with no indications of heating, together with a gemmological report.

✝ CHF 60,000-120,000

US$ 70,000-140,000

VAN CLEEF & ARPELS

DIAMOND ‘FLAMME’ BROOCH

Designed as two intertwined, stylised flames, one set with baguette diamonds, the other with old European-cut diamonds, signed Van Cleef & Arpels, numbered, French assay marks for platinum and gold; circa 1950.

✝ CHF 12,000-16,000

US$ 15,000-20,000

BULGARI

RUBY AND DIAMOND BRACELET

Centring a row of alternating step-cut rubies and similarly shaped diamonds, flanked by pavé-set brilliant-cut diamonds, length approximately 180mm, signed Bvlgari, case stamped Bvlgari; circa 1950.

✝ CHF 50,000-70,000 US$ 65,000-90,000

□ 543 NO RESERVE

COLLECTION OF UNMOUNTED RUBIES

Composed of 54 variously shaped rubies weighing a total of 85.22 carats

Accompanied by 28 SSEF reports, six AGL reports, four Gübelin reports and 2 LFG reports.

✝ CHF 80,000-120,000

US$ 100,000-150,000

□ 544 NO RESERVE

COLLECTION OF UNMOUNTED SAPPHIRES

Composed of 10 variously-shaped sapphires weighing a total of 56.67 carats. Accompanied by five SSEF reports stating that the sapphires weighing 3.94 to 2.83 carats are of Ceylon and Madagascan origins, with no indications of heating.

Accompanied by two Gübelin reports stating that the sapphires weighing 29.69 and 1.98 carats are of Burmese origin, with no indications of heating.

✝ CHF 80,000-160,000

US$ 100,000-200,000

545 not to scale

546 not to scale

□ 545 NO RESERVE

COLLECTION OF UNMOUNTED PINK AND PURPLE SAPPHIRES

Composed of 50 variously shaped pink and purple sapphires weighing a total of 63.00 carats.

Accompanied by four LFG reports stating that the pink sapphires weighing 2.18 to 1.09 carats are of Madagascan origin, with no indications of heating.

✝ CHF 80,000-120,000

US$ 100,000-150,000

□ 546 NO RESERVE

COLLECTION OF UNMOUNTED EMERALDS

Composed of 51 variously shaped emeralds weighing a total of 129.50 carats.

Accompanied by 19 SSEF reports, one SSEF report copy and three LFG reports.

✝ CHF 160,000-240,000

US$ 200,000-300,000

alternate view

□ 547 NO RESERVE

SAPPHIRE AND DIAMOND RING

Featuring an octagonal step-cut sapphire weighing 15.19 carats, flanked by rectangular step-cut diamonds, size 52. Accompanied by Gübelin report no. 22082192, dated 8 September 2022, stating that the sapphire is of Burmese origin, with no indications of heating.

✝ CHF 80,000-120,000 US$ 100,000-150,000

548

EMERALD AND DIAMOND RING

Set with a step-cut emerald weighing 6.98 carats, between triangular diamond shoulders, size 55, maker’s mark. Accompanied by SSEF report no. 153223, dated 17 March 2026, stating that the emerald is of Colombian origin, with a minor amount of oil in fissures.

✝ CHF 32,000-48,000 US$ 40,000-60,000

DIAMOND RING

Set with a step-cut diamond weighing 10.80 carats, between tapered baguette diamond shoulders, size 53, Italian assay mark for platinum.

Accompanied by GIA report no. 5232934410, stating that the diamond is H Colour, VS1 Clarity; together with a gemmological report.

✝ CHF 80,000-160,000 US$ 100,000-200,000

UNMOUNTED RUBY

The cushion-shaped ruby weighing 6.49 carats.

Accompanied by SSEF report no. 153227, dated 17 March 2026, stating that the ruby is of Burmese origin, with no indications of heating and a minor amount of oil in fissures.

✝ CHF 130,000-180,000 US$ 170,000-230,000

551

CHAUMET

RUBY AND DIAMOND RING

Set with a cushion-shaped ruby weighing 2.98 carats within a border of alternating pear-shaped and baguette diamonds, size 50, signed Chaumet Paris, maker’s mark for Chaumet, partial French assay mark for gold, case stamped Chaumet.

Accompanied by SSEF report no. 91312, dated 4 April 2017, stating that the ruby is of Burmese origin, with no indications of heating, stating ‘Pigeon Blood’ colour.

✝ CHF 60,000-75,000

US$ 75,000-95,000

552

CHAUMET

DIAMOND BRACELET

Centring a graduated line of collet-set old mine-cut diamonds, to a surround pavé-set with similarly shaped diamonds, length approximately 185mm, unsigned, partial maker’s mark for Chaumet, French assay marks for platinum and gold; 1920s.

✝ CHF 35,000-55,000

US$ 45,000-70,000

554

553

BULGARI

RUBY AND DIAMOND BROOCH

Designed as a spray of irises, the flowerheads set with calibré-cut rubies, the petals and leaves pavé-set with brilliant-cut diamonds, to a baguette diamond ribbon and stems, signed Bvlgari, case stamped Bvlgari; circa 1955.

✝ CHF 28,000-50,000

US$ 35,000-65,000

554

UNMOUNTED SAPPHIRE

The unmounted step-cut sapphire weighing 13.56 carats.

Accompanied by SSEF report no. 153226, dated 18 March 2026, stating that the sapphire is of Ceylon origin, with no indications of heating.

✝ CHF 70,000-100,000

US$ 90,000-130,000

SAPPHIRE AND DIAMOND RING

Set with a cushion-shaped sapphire weighing 4.25 carats flanked by old European-cut diamonds, size 54. Accompanied by SSEF report no. 153225, dated 18 March 2026, stating that the sapphire is of Kashmir origin, with no indications of heating.

✝ CHF 60,000-75,000

US$ 70,000-90,000

556

CARTIER

DIAMOND AND SAPPHIRE BRACELET

Of openwork design, featuring three marquise-shaped diamonds, surrounded by buff-top sapphires, further set with old European-, circular- and single-cut diamonds, length approximately 190mm, unsigned, numbered, partial French maker’s and assay marks for platinum; circa 1928. Accompanied by a copy of a Cartier valuation report, dated 19 December 2005, stating that the bracelet was created circa 1928.

✝ CHF 150,000-200,000

US$ 180,000-250,000

557

SILVER-TOPPED GOLD, NATURAL PEARL AND DIAMOND PENDANT

Featuring a baroque natural pearl measuring approximately 21.3 x 15.4 x 12.6mm, suspending a detachable pendant featuring a baroque natural pearl measuring approximately 18.2 x 15.4 mm surmounted by a bow motif, set throughout with old mine- and rose-cut diamonds, French assay mark for silver, one small diamond deficient; late 19th century Accompanied by GIA report no. 2235825184, dated 4 January 2026, stating that the pearls were found to be natural, saltwater and partially hollow and filled with foreign material.

✝ CHF 16,000-24,000

US$ 20,000-30,000

558

PAIR OF DIAMOND PENDENT EARRINGS

Of girandole design, set throughout with rose-cut diamonds in closed back settings, screwback fittings, partial French maker’s marks, French assay marks for gold; 1830s.

✝ CHF 20,000-30,000

US$ 26,000-38,000

FANCY LIGHT YELLOW DIAMOND PENDANT

Featuring a cushion-shaped fancy light yellow diamond weighing 13.18 carats, the gallery decorated with openwork heart-shaped motifs, surmounted by a foliate spray accented by old Europeancut diamonds; circa 1900.

US$ 15,000-25,000 559

Accompanied by GIA report no. 2233911445, dated 2 April 2026, stating that the diamond is Fancy Light Yellow, Natural Colour, SI1 Clarity.

✝ CHF 24,000-40,000

US$ 30,000-50,000

PAIR OF TOPAZ AND DIAMOND EARRINGS

Each suspending an oval topaz in foiled closed back settings, to a surmount set with closed back old mine-cut diamonds, fitted with posts; circa 1830.

✝ CHF 12,000-20,000

PREVIOUSLY IN THE COLLECTION OF COMTE ALEXIS DUPARCHY (1835-1907)

SAPPHIRE INTAGLIO RING

Set with on oval sapphire intaglio depicting the coronet of a French count weighing 10.07 carats, to an openwork mount of neo-renaissance inspiration featuring mascarons and acanthus scrolls, size 56; late 19th century.

Accompanied by SSEF report no. 153224, dated 18 March 2026, stating that the sapphire is of Ceylon origin, with no indications of heating.

PROVENANCE

Comte Alexis Duparchy (1835-1907),

✝ CHF 20,000-40,000

US$ 26,000-50,000

COMTE ALEXIS DUPARCHY (1835-1907)

Jean Alexis Dauphin Duparchy was a French nobleman and entrepreneur with a highly successful career spanning some of the most important railroad and public infrastructure projects of the mid- to late 19th century. Duparchy was born in 1835 in the Jura region in Eastern France to a family of landowners. He received a solid education and trained as an engineer in Paris. From 1862, he worked for the Compagnie des chemins de fer du Nord during the railroad boom of Napoleon III’s Second French Empire. In 1865, he joined the team of Ferdinand de Lesseps and spent four years working on the construction of the Suez Canal, arguably the most groundbreaking feat of engineering of the XIXth century. After the fall of the French Second Empire in 1870, Duparchy became one of the most important investors of his time, participating in railroad construction programmes in Ethiopia, Russia, Romania and Portugal where he worked together with Bartissol and Eiffel. The largest project he participated in was the building of Montevideo harbour in Uruguay starting in 1901.

In 1882, he crowned his business successes by acquiring the Château de Savigny-sur-Orge. In fact, he received the château from the marquess of Alta-Viva in lieu of unpaid debts. For eighteen years Duparchy sat on the municipal council of the adjoining village of Savignysur-Orge and was a beloved figure of the community.

MARZO

SAPPHIRE AND DIAMOND PENDANT

Featuring oval sapphires weighing 36.73 and 20.87 carats respectively, each within a laurel wreath border connected by a bow, suspending an articulated fringe, millegrain-set with old mine-, old European- and single-cut diamonds, signed Marzo Paris, French assay marks for platinum; circa 1905.

Accompanied by SSEF reports no. 122107, dated 21 April 2022, and no. 120504, dated 21 January 2022, stating that the sapphires show no indications of heating, the sapphire weighing 36.73 carats of Burmese origin, the sapphire weighing 20.87 carats of Ceylon origin; together with a Gübelin report.

✝ CHF 65,000-95,000

US$ 80,000-120,000

MARZO

Lorenzo Marzo was born in Madrid to a family of silversmiths. In 1901, he settled in Paris where he quickly became one of the most sought-after jewellers of the early 20th century. Marzo initially had an address on rue Saint-Honoré, but later relocated to rue de la Paix, the most prestigious location for jewellers at the time. Stores in Biarritz and Madrid soon followed. During the Belle Époque Marzo created stately pieces in the garland style such as the present lot. His creations from this period were particularly beloved by the Spanish aristocracy. In the 1920s, Marzo became known for a highly colourful take on the art deco style, winning a grand prix at the 1925 Exposition Internationale des Arts Décoratifs. When Lorenzo Marzo passed away in 1929, his company was continued by his son Rafael.

BOUCHERON

EMERALD, GEM-SET AND DIAMOND BROOCH/PENDANT

Designed as a giardinetto, the pearshaped rose-cut emerald urn issuing a delicate floral and foliate spray of old mine and single-cut diamonds, one of yellow tint, and vari-cut rubies, emeralds and sapphires, suspended from a diamond-set ribbon bow surmount, the whole suspending three elongated diamond briolette drops, signed F. Boucheron Paris, French assay mark for gold; circa 1900.

Please note that the diamonds of yellow tint have not been tested for natural colour origin.

LITERATURE

For jewels in similar taste see:

“The Belle Epoque of French Jewellery 1850-1910”, various contributors, London, 1990, page 145, no 74, a floral bracelet set with calibré-cut gems, by Boucheron, designed by Auguste Bugniot, 1898.

Duncan, Alistair, “The Paris Salons 18951914”, Suffolk, 1994, page 84 for multigem-set floral jewels by Boucheron dated 1901.

✝ CHF 65,000-95,000

US$ 85,000-120,000

This jewel is a superb example of Boucheron’s exquisite craftsmanship. Each gem is precisioncut and beautifully matched and the pendant is impeccably weighted. The elongated diamond briolettes are not only an unusual design feature but an opulent addition to this masterpiece in miniature.

Boucheron relied on a network of specialised craftsmen rather than a single, centralised workshop. Auguste Bugniot and Theophile Picot were two such jewellers who were employed.

Auguste Bugnoit, engaged by Boucheron from around 1890, appears to have focused on naturalistic forms and his compositions frequently returned to floral motifs. His use of calibré-cut gemstones is especially noteworthy. This specific technique required stones to be cut and faceted by hand to precise, custom dimensions to fit seamlessly within complex, often curved settings such as petals and buds.

Théophile Picot, by contrast, may be characterised as operating at the intersection of jewellery and sculpture, creating “little marvels of extraordinary precision and finish” (Gilles Néret). His work is distinguished by an acute attention to microscopic modelling and threedimensional form.

FORMERLY IN THE COLLECTION OF EDWIGE FEUILLÈRE (1907-1998)

STERLÉ

PAIR OF RUBY AND DIAMOND PENDENT EARCLIPS

The articulated tassels set with cushionshaped rubies suspended from stylised flame-shaped surmounts set with baguette diamonds, signed Sterlé Paris, numbered, partial French maker’s and assay marks for gold; 1950s.

PROVENANCE

Edwige Feuillère (1907-1998)

✝ CHF 24,000-40,000

US$ 30,000-50,000

564

EDWIGE FEUILLÈRE

Edwige Feuillère (1907-1998) was one of the most distinguished French stage and screen actresses of the 20th century with a career spanning over six decades. For generations of French film and theatre audiences Ms Feuillère was a beloved star thanks to her wide dramatic range, elegant dress sense, charming countenance and melodious speaking voice.

Born in Besançon in 1907, she studied acting at the conservatory of dramatic arts of Dijon. In 1930, she joined the Comédie Française. In 1935, Ms Feuillère rose to widespread fame when she starred in the historical

drama Lucrèce Borgia directed by the legendary film director Abel Gance, best known for his epic Napoléon (1927). One scandalous scene in Lucrèce Borgia, showed the title character nude in profile.

Édwige Feuillère appeared in films by the greatest directors of her day such as Marcel Tourneur’s Mam’zelle Bonaparte (1942) and Sans Ledemain (1940) and de Mayerling à Sarajevo (1940) both by Austrian émigré Max Ophuls.

On the stage, her greatest roles included the heroine in La Dame aux Camelias, the title character in La Folle de Chaillot and the femme fatale in Paul Claudel’s Partage de Midi. In 1943, Ms Feuillère created the role of Lia in Jean Girardeaux’s Sodome et Gomorrhe, the play ran for 215 performances. Her interpretation of Racine’s Phaedre was hailed as the gold standard for anyone following her in the classic role.

She had a close friendship and working relationship with Jean Cocteau who wrote the play L’Aigle à Deux Têtes for her, a fictional romance loosely based on the myth of Empress Sissi. After a run of 200 performances, she reprised the role in the 1947 film adaptation opposite Jean Cocteau’s partner Jean Marais. In the 1950s, she starred in the film le Blé en Herbe (1954), based on Colette’s novel about a MayDecember relationship between a teenage boy and a middle-aged woman.

Following a career lasting decades, Ms Feuillère’s last appearance was in a 1995 television film based on the Balzac novel La Duchesse de Langeais.

565

RUBY AND DIAMOND RING

Set with an oval ruby weighing 2.22 carats, between heart-shaped diamond shoulders, size 47.

Accompanied by SSEF report no. 100213, dated 28 May 2018, and Gübelin report no. 18051126, dated 4 June 2018, each stating that the ruby is of Burmese origin, with no indications of heating, stating ‘Pigeon Blood’ colour, together with a gemmological report. Further accompanied by GIA diamond dossiers no. 7286623138 and no. 2286603747, dated 4 and 6 April 2018, stating that the diamonds weighing 0.52 and 0.52 carat each are D Colour, Internally Flawless, one with Excellent Polish.

✝ CHF 48,000-80,000

US$ 60,000-100,000

566

VAN CLEEF & ARPELS

GOLD AND MYSTERY-SET SAPPHIRE PILL BOX

The rectangular polished gold case featuring a lid and push piece set en serti mystérieux with calibré-cut sapphires, signed Van Cleef & Arpels, numbered, maker’s marks for Van Cleef & Arpels, French assay marks for gold; circa 1940.

✝ CHF 16,000-24,000

US$ 20,000-30,000

Please note that the GIA reports are more than 5 years old and may require updating.

567

WEINGRILL - BULGARI

GOLD, ANCIENT COIN AND DIAMOND ‘MONETE’ CHOKER

The front set with an ancient Greek silver tetradrachm coin depicting Alexander the Great within a brilliantcut diamond border, on a triple row of gaspipe linking, inner circumference approximately 330mm, signed Bvlgari and Weingrill, maker’s mark for Weingrill, Italian maker’s and assay marks for gold, fitted case stamped Bvlgari; circa 1980.

✝ CHF 48,000-80,000

US$ 60,000-100,000

568

ALEXANDRITE RING

(in incandescent light)

Featuring a collet-set cushion-shaped alexandrite weighing 10.11 carats, size 51. Accompanied by AGL report no. 1131871, dated 3 May 2023, SSEF report no. 142323, dated 31 October 2024, and Gübelin report no. 24092060, dated 25 September 2024, each stating that the alexandrite shows no indications of treatment, AGL and SSEF stating Ceylon origin, AGL stating a prominent-strong degree of colour-change of excellent-very good quality, SSEF stating a moderate degree of colour-change.

✝ CHF 120,000-200,000

US$ 150,000-250,000

JACQUES LACLOCHE

GOLD, EMERALD AND DIAMOND DEMI-PARURE

Comprising: a sautoir composed of a rope-chain with a detachable, adjustable slide, terminating in a detachable pendant featuring an articulated cluster of cabochon emeralds, accented by oval, old mine- and old European-cut diamonds, embellished with gold fringe, length approximately 860mm, adjustable, detachable to be worn as a shorter necklace, length approximately 480mm, brooch fitting for the detachable pendant, detachable slide can be worn as a brooch; and a pair of earclips designed as gold fringe tassels accented by cabochon emeralds and old mine-cut diamonds; each signed J. Lacloche Paris, necklace with French maker’s marks, earclips with maker’s marks for Jean Ronsous, French assay marks for gold; circa 1950.

✝ CHF 40,000-60,000

US$ 50,000-75,000

BULGARI

GEM-SET AND DIAMOND

‘NATURALIA’ PARURE

Comprising: a collar composed of alternating segments set with cabochon amethysts and pink tourmalines, embellished with polished green tourmalines and brilliant-cut diamonds, length approximately 370mm; a bangle of similar design, inner circumference approximately 150mm; and a triangular brooch; each signed Bvlgari, necklace and bangle with Italian maker’s marks, brooch with maker’s mark for Bulgari, Italian assay marks for gold, pouch and two cases stamped Bvlgari; circa 1990.

✝ CHF 55,000-75,000

US$ 70,000-95,000

571

VAN CLEEF & ARPELS

DIAMOND BANGLE

Pavé-set with brilliant-cut diamonds framed by an undulating, polished gold edge, inner circumference approximately 150mm, signed Van Cleef & Arpels, numbered, maker’s mark for Lasbleiz Fournier Vitiello, French assay mark for gold, pouch stamped Van Cleef & Arpels; circa 1979.

✝ CHF 60,000-100,000

US$ 75,000-130,000

572

BULGARI

TOURMALINE AND DIAMOND BROOCH

Designed as a bow decorated with buff-top pink tourmalines and pavéset with brilliant-cut diamonds, signed Bvlgari, French assay mark for gold, case stamped Bvlgari; 1980s.

✝ CHF 6,000-9,000

US$ 7,500-12,000

DOLCE & GABBANA ALTA GIOIELLERIA

KUNZITE, TOURMALINE, EMERALD AND DIAMOND DEMI-PARURE

Comprising: a necklace set with cushion-shaped kunzites alternating with pear-shaped tourmalines and circular-cut emeralds within brilliant-cut diamond borders, length approximately 400mm; and a pair of pendent earrings of similar design, collapsible post and hinged back fittings, Italian maker’s and assay marks for gold; each signed Dolce & Gabbana Alta Gioielleria, numbered, maker’s marks for Dolce & Gabbana.

Accompanied by a copy of an original Dolce & Gabbana invoice, dated 7 August 2017.

✝ CHF 32,000-65,000

US$ 40,000-80,000

DOLCE & GABBANA

ALTA GIOIELLERIA

Dolce & Gabbana inaugurated its first Alta Gioielleria collection in 2012, with a spectacular launch event in Taormina. The high jewellery collection forms a natural continuation of Dolce & Gabbana’s unique, baroque, quintessentially Italian creative universe. The exceptional quality of the gemstones displays the fashion house’s affinity to use only the best materials and craftsmanship, whether it be in the realm of fashion or jewellery. Dolce & Gabbana Alta Gioielleria forms an extension of the brand’s aesthetic code into all decorative arts, expanding its opulent and colourful spirit to encompasses all aspects of a perfectly curated luxury lifestyle.

574

BULGARI

PAIR OF DIAMOND BROOCHES

Each designed as a flowerhead, set with brilliant-cut, marquise-shaped and baguette diamonds, signed Bvlgari, case stamped Bvlgari; circa 1960.

Accompanied by a copy of a Bulgari confirmation letter, dated 4 June 2013.

✝ CHF 40,000-60,000

US$ 50,000-75,000

575

CHOPARD

PAIR OF SPESSARTITE GARNET, CITRINE AND RUBY ‘TEMPTATIONS’ PENDENT EARRINGS

Featuring a pair of cushion-shaped spessartite garnets stated to weigh a total of 29.23 carats, within a frame of circularcut citrines embellished with pavé-set circular-cut rubies, the surmounts featuring pear-shaped spessartite garnets, collapsible post and hinged back fittings, signed Chopard, numbered. Accompanied by a Chopard certificate of origin.

This is the only example of the ‘Tempatations’ earrings by Chopard that incorporate spessartite garnets.

✝ CHF 90,000-130,000

US$ 110,000-160,000

575

576

VAN CLEEF & ARPELS

PAIR OF COLOURED DIAMOND AND DIAMOND EARCLIPS

Designed as flowerheads, the petals pavé-set with brilliant-cut diamonds of yellow tint, the stamen set with similarly shaped diamonds, signed Van Cleef Arpels, numbered, maker’s marks for Van Cleef & Arpels, French assay marks for platinum and gold; circa 1980.

Please note that the diamonds of yellow tint have not been tested for natural colour origin.

✝ CHF 50,000-80,000

US$ 65,000-100,000

577

BULGARI

GEM-SET AND DIAMOND ‘CELTAURA’ BANGLE

Composed of bombé links, the front set with a graduated series of various polished gemstones including an amethyst, pink tourmalines, blue topazes and citrines, accented by pavéset diamonds, inner circumference approximately 155mm, expandable, signed Bvlgari, Italian maker’s and assay marks for gold, case stamped Bvlgari; circa 1993.

LITERATURE

Amanda Triossi and Daniela Mascetti, BVLGARI, New York, 2007, p. 120 for the Celtaura collection designed in 1993.

✝ CHF 28,000-42,000

US$ 35,000-55,000

BULGARI

GEM-SET ‘ALLEGRA’ NECKLACE

The bib-style necklace set throughout with variously shaped cabochon gemstones including amethysts, pink and green tourmalines, citrines and blue topazes, length approximately 400mm, signed Bvlgari, numbered, Italian maker’s and assay marks for gold.

✝ CHF 48,000-65,000

US$ 60,000-80,000

BULGARI AND THE TECHNICOLOUR DREAMSCAPE

Allegra, Celtaura and Naturalia are but a few of the alluring names which Bulgari gave to its characteristic collections of the 1990s featuring a panoply of brightly coloured gemstones. This bold and imaginative use of colour is a Leitmotif throughout Bulgari’s repertoire and a key component of the Italian jeweller’s creative DNA. These pieces are perfectly representative of the vibrancy, whimsy and sense of joy which have made Bulgari a beloved staple for generations of collectors.

BULGARI

SAPPHIRE AND DIAMOND NECKLACE

The central pendant of geometric design decorated with a sugarloaf cabochon sapphire enhanced by brilliant-cut and baguette diamonds, to a fancy link chain pavé-set with brilliantcut diamonds, length approximately 410mm, signed Bvlgari, with partial Italian maker’s mark and assay mark for gold.

✝ CHF 60,000-100,000

US$ 75,000-130,000

580

BULGARI

GOLD, ANCIENT COIN AND DIAMOND ‘MONETE’ NECKLACE

The front collet-set with a silver ancient Greek tetradachm coin depicting Alexander the Great within a double border of brilliant-cut diamonds, on a curb-link chain, length approximately 410mm, signed Bvlgari, maker’s mark for Bulgari jewels imported and sold in Monaco, Italian assay mark for gold; 1980s.

✝ CHF 48,000-65,000

US$ 60,000-80,000

581

BULGARI

PAIR OF ANCIENT COIN AND DIAMOND ‘MONETE’ PENDENT EARRINGS

Collet-set with ancient Greek silver drachma coins, within borders and to surmounts pavé-set with brilliantcut diamonds, post and hinged back fittings, signed Bvlgari, numbered, pouch stamped Bvlgari; 1980s.

✝ CHF 16,000-24,000

US$ 20,000-30,000

VAN CLEEF & ARPELS

GOLD AND DIAMOND ‘LION’S HEAD’ SAUTOIR

Composed of textured gold lion’s heads and circular links accented by brilliantcut diamonds, length approximately 740mm, signed VCA, numbered, maker’s mark for Van Cleef & Arpels, French assay mark for gold, pouch stamped Van Cleef & Arpels; circa 1972.

Accompanied by a copy of an original Van Cleef & Arpels invoice, dated 10 September 2021.

✝ CHF 65,000-95,000

US$ 85,000-120,000

583

CARTIER

SAPPHIRE AND DIAMOND

DEMI-PARURE

Comprising: a collar, the front set with cabochon and sugarloaf cabochon sapphires, framed by marquise-, pearshaped and brilliant-cut diamonds, inner circumference approximately 380mm; and a bracelet of similar design, inner circumference approximately 160mm; each signed Cartier, numbered, maker’s marks for Cartier, necklace with further maker’s mark for Société de Fabrication de Haute Joaillerie, French assay marks for gold; 1980s.

Accompanied by SSEF reports no. 150927 and no. 150926, each dated 15 December 2025, stating that the sapphires are of Ceylon origin, with indications of heating.

✝ CHF 95,000-140,000

US$ 120,000-180,000

584

CARTIER

SAPPHIRE AND DIAMOND RING

Set with a sugarloaf cabochon sapphire weighing 5.36 carats, within a double border of brilliant-cut diamonds between similarly set bifurcated shoulders, size 51, signed Cartier, numbered, partial maker’s mark for Cartier, French assay mark for gold; 1980s.

Accompanied by SSEF report no. 151789, dated 30 January 2026, stating that the sapphire is of Ceylon origin, with no indications of heating.

✝ CHF 16,000-32,000

US$ 20,000-40,000

BUCHERER

EMERALD AND DIAMOND

NECKLACE

The front featuring step-cut emeralds weighing 13.24, 6.47, 4.50, 3.16 and 3.08 carats respectively, pavé-set throughout with brilliant-cut diamonds, inner circumference approximately 350mm, unsigned, maker’s mark for Bucherer; circa 1986.

Accompanied by SSEF reports no. 150628, 150627, 150626, 150625 and 150624, dated 9 and 15 December 2025, stating that the emeralds weighing a total of 30.45 carats are of Colombian origin, the emerald weighing 3.16 carats with no indications of clarity modification, the emeralds weighing 13.24, 4.50 and 3.08 carats with a minor amount of oil in fissures, the emerald weighing 6.47 carats with a moderate amount of oil in fissures; together with a copy of an original Bucherer invoice, dated 10 December 1986.

✝ CHF 480,000-800,000

US$ 600,000-1,000,000

FANCY BROWNISH ORANGY PINK DIAMOND RING

Set with a pear-shaped fancy brownish orangy pink diamond weighing 14.60 carats, the gallery accented by brilliantcut diamonds, size 52.

Accompanied by GIA report no. 5221750889, dated 9 August 2024, stating that the diamond is Fancy Brownish Orangy Pink, Natural Colour, VS1 Clarity.

✝ CHF 650,000-950,000 US$ 800,000-1,200,000

SHINE BRIGHT LIKE A DIAMOND

587

CHOPARD

UNIQUE GEM-SET ‘RIHANNA ♡ CHOPARD’ BRACELET

Set with various pear- and marquiseshaped gemstones including tsavorite and spessartite garnets and pink and yellow sapphires, suspending a fringe of bullet-shaped polished turquoises, the claps suspending a briolette coloured sapphire tassel, length approximately 170mm, adjustable to 190mm, signed Chopard, numbered, marked R ♡ C.

Accompanied by a Chopard certificate of authenticity.

✝ CHF 45,000-65,000

US$ 60,000-85,000

RIHANNA ♡ CHOPARD

In 2017, Chopard collaborated with Rihanna on a jewellery collection titled ‘Rihanna ♡ Chopard’. ‘I have always been in love with Chopard’s exquisite jewellery, so to actually design a collection with them is something I still cannot believe’, Rihanna remarked. The collection pays homage to the vibrancy and colour of the popstar’s native Barbados. Rihanna insisted on only using fair-mined gold and every piece from the collection is marked ‘R ♡ C’.

The collection was launched at the Cannes Film Festival with a glittering red carpet event on 19 May 2017 at which Rihanna wore this very parure together with a light blue Dior gown. The event furthermore coincided with the 70th anniversary of the festival and marked the 20th anniversary of Chopard being an official partner of the Cannes Film Festival.

SHINE BRIGHT LIKE A DIAMOND

588

CHOPARD

UNIQUE GEM-SET ‘RIHANNA ♡ CHOPARD’ DEMI-PARURE

Comprising: a bib-style necklace set throughout with variously shaped gemstones including tsavorite and spessartite garnets, pink and yellow sapphires and blue topazes, the front embellished with carved turquoises, mounted in polychromous titanium, the clasp accented by brilliant-cut diamonds, inner circumference approximately 350mm, adjustable to approximately 400mm; a pair of pendent earrings of similar design further accented by circular-cut rubies, collapsible post and hinged back fittings; each signed Chopard, numbered, marked R ♡ C.

Accompanied by two Chopard certificates of authenticity.

✝ CHF 200,000-300,000

US$ 260,000-380,000

FROM A EUROPEAN PRIVATE COLLECTION

(LOTS 589-594)

FROM A EUROPEAN PRIVATE COLLECTION

VAN CLEEF & ARPELS ONYX AND DIAMOND PENDANT-WATCH WITH LATER BROOCH FITTING

The associated surmount of openwork design set with a line of brilliant-cut diamonds, supporting a pendant featuring a square watch dial on the reverse, the obverse inlaid with onyx and decorated with brilliant-cut diamonds, signed Van Cleef & Arpels, numbered; 1970s and later.

✝ CHF 6,000-7,500

US$ 7,000-9,500

FROM A EUROPEAN PRIVATE COLLECTION

VAN CLEEF & ARPELS GOLD AND RUBY ‘DENTELLE’ BROOCH

Designed as folds of finely pierced, polished gold lace, the edges featuring openwork floral motifs decorated with circular-cut rubies, signed Van Cleef & Arpels, French maker’s and assay marks for gold; 1940s.

✝ CHF 14,000-19,000 US$ 18,000-24,000

FROM A EUROPEAN PRIVATE COLLECTION

(LOTS 589-594)

FROM A EUROPEAN PRIVATE COLLECTION

VAN CLEEF & ARPELS

RUBY, EMERALD AND DIAMOND BROOCH

Decorated with drill-set ruby and emerald cabochons and beads, further highlighted with brilliant-cut diamonds and circular-cut rubies and emeralds, signed Van Cleef & Arpels N.Y., numbered; circa 1960.

✝ CHF 48,000-65,000

US$ 60,000-82,000

FROM A EUROPEAN PRIVATE COLLECTION

(LOTS 589-594)

592

FROM A EUROPEAN PRIVATE COLLECTION

VAN CLEEF & ARPELS

DIAMOND BRACELET

Designed as interlacing lines of brilliantcut and marquise-shaped diamonds, length approximately 180mm, signed Van Cleef & Arpels, numbered, French maker’s and assay marks for platinum and gold, case stamped Van Cleef & Arpels; circa 1960.

✝ CHF 38,000-60,000

US$ 48,000-70,000

593

FROM A EUROPEAN PRIVATE COLLECTION

VAN CLEEF & ARPELS

PAIR OF RUBY, SAPPHIRE AND DIAMOND CLIPS

Of geometric design, set with brilliant-, old- European-cut and baguette diamonds, decorated with cabochon rubies and carved sapphires, signed Van Cleef & Arpels New York, numbered; 1940s.

✝ CHF 12,000-17,000

US$ 14,000-22,000

FROM A EUROPEAN PRIVATE COLLECTION

VAN CLEEF & ARPELS

DIAMOND ‘À VOLETS’ WRISTWATCH

The hinged centre concealing a square dial with baton and Arabic numeral indicators, flanked by semicircular motifs set with baguette and tapered baguette diamonds, to a brilliant-cut diamond bracelet, length approximately 150mm, the dial and caseback signed Van Cleef & Arpels, caseback numbered, French maker’s and assay marks for platinum and gold, manual movement; circa 1940.

✝ CHF 24,000-34,000

US$ 30,000-40,000

595

595

SPINEL AND DIAMOND RING

Centring a cushion-shaped spinel weighing 11.13 carats within a tiered border set with oval, brilliant- and rosecut diamonds, to shoulders pavé-set with brilliant-cut diamonds, size 53. Accompanied by AGL report no. 8093445, dated 25 September 2025, stating that the spinel is of Tanzanian origin, with no indications of heating; together with a gemmological report.

✝ CHF 70,000-100,000

US$ 90,000-130,000

596

BULGARI

DIAMOND ‘SERPENTI’ NECKLACE

Designed as a serpent, the articulated scales set throughout with brilliant-cut diamonds, the eyes collet-set with pearshaped diamonds, length approximately 410mm, signed Bvlgari, numbered, Italian maker’s and assay marks for gold.

✝ CHF 200,000-400,000

US$ 245,000-500,000

□ 597 NO RESERVE

IMPRESSIVE PAIR OF SAPPHIRE AND DIAMOND PENDENT EARRINGS

Featuring a pair of step-cut sapphires weighing 35.74 and 30.54 carats respectively, surmounted by brilliantdiamonds.

Accompanied by Gübelin reports no. 22092063, dated 13 October 2022, and no. 21112117, dated 16 December 2021, stating that the sapphires are of Ceylon origin, with no indications of heating; together with GIA report no. 2175732541, dated 15 July 2016, stating that diamond weighing 1.56 carats is I Colour, VS1 Clarity and two additional gemmological reports.

✝ CHF 280,000-430,000

US$ 350,000-550,000

598

SAPPHIRE RING

The oval sapphire weighing 18.03 carats, to a silver mount embellished with a blue enamel line, size 64, illustrated unmounted

Accompanied by Gübelin reports no. 22107110 and no. 15111177, dated 21 October 2022 and 10 December 2015 respectively, and AGL report no. 115300, dated 15 January 2026, each stating that the sapphire shows no indications of heating, Gübelin stating Burmese origin, AGL stating Madagascan origin.

✝ CHF 150,000-280,000

US$ 180,000-360,000

599

CARTIER

ICONIC DIAMOND, SAPPHIRE, EMERALD AND ONYX ‘PANTHÈRE’ BANGLE

Designed as two panthers with pearshaped emerald eyes and carved onyx noses biting a central oval-shaped cabochon sapphire, pavé-set throughout with brilliant-cut diamonds, accented by buff-top cabochon sapphires, inner circumference approximately 168mm, signed Cartier, numbered, French assay mark for platinum; circa 1991.

LITERATURE

Franco Cologni and Eric Nussbaum, Platinum by Cartier: Triumphs of the Jewelers’ Art, New York, p. 250 for an illustration of this bracelet.

✝ CHF 280,000-430,000

US$ 350,000-550,000

THE INVERNIZZI FAMILY

LOTS 600-602

Invernizzi represents one of Milan’s entrepreneurial families who transformed industrial success into concrete support for the city’s scientific and social progress, moreover behind this surname lies the story of a successful marriage spanning nearly 70 years, that of Romeo and Enrica.

Well known for their dairy industry, the family has a historic lineage of benefactors whose name has been inextricably linked to philanthropy in the scientific, academic, and healthcare fields of ‘Milan’s elite’ such as Bocconi University, promoting best practices in economics and management or establishing the Invernizzi awards an important recognition in food

sciences, often referred to as the ‘Italian Nobel Prize’.

The family was among the major benefactors of the Fondazione Ospedale Maggiore Policlinico di Milano, supporting hospital projects and medical research, thanks to their large donations the National Institute of Molecular Genetics, since November 2014 is a reality and Invernizzi Pavillion is a testimony of science research at the highest levels.

Moreover the Invernizzi’s cultural imprint is the couple’s residence ‘Villa Invernizzi’, a testament to the family heritage. Not only famous for its park but historically home to pink flamingos, a symbol of a legacy of beauty and nature in the heart of Milan.

600

FORMERLY IN THE COLLECTION OF ENRICA PESSINA INVERNIZZI, WIFE TO ROMEO INVERNIZZI

FARAONE

PAIR OF NATURAL PEARL AND DIAMOND EARRINGS

Set with a pair of button-shaped natural pearls measuring approximately 11.90 - 12.40 x 10.35mm and 11.33 - 11.38 x 10.36mm respectively, enhanced with old-European-cut diamonds, post and hinged back fittings, signed Faraone, Italian maker’s mark and assay mark for gold; 1970s.

Accompanied by an SSEF report, together with a gemmological report.

✝ CHF 18,000-28,000

US$ 24,000-36,000

601

FORMERLY IN THE COLLECTION OF ENRICA PESSINA INVERNIZZI, WIFE TO ROMEO INVERNIZZI

BULGARI

RUBY, ONYX AND DIAMOND BRACELET

The articulated bracelet composed of lozenge shaped segments decorated with cabochon rubies and brilliant-cut diamonds, framed by polished onyx bars, length approximately 210mm, unsigned, numbered, maker’s mark for Jean-Claude Duhem, French export assay mark for gold; 1980s.

Accompanied by a gemmological report.

✝ CHF 36,000-55,000

US$ 45,000-65,000

FORMERLY IN THE COLLECTION OF ENRICA PESSINA INVERNIZZI, WIFE TO ROMEO INVERNIZZI

BULGARI

GOLD, EMERALD AND DIAMOND ‘SERPENTI’ WRISTWATCH

Designed as a coiling serpent, the head and tail set with pear-shaped and brilliant-cut diamonds, to cabochon emerald eyes, the mouth opening to reveal a round dial, inner circumference approximately 105mm, expandable, signed Bvlgari, dial signed JaegerLeCoultre, mechanical movement, Italian assay mark for platinum; circa 1976.

Accompanied by a copy of a Bulgari receipt, dated 9 of September 1976.

✝ CHF 180,000-380,000

US$ 230,000-480,000

603

SAPPHIRE AND DIAMOND RING

Set with a cushion-shaped sapphire weighing 12.00 carats between triangular diamond shoulders, size 53, partial Italian maker’s and assay marks for gold.

Accompanied by SSEF report no. 140186, dated 30 August 2024, stating that the sapphire is of Ceylon origin, with no indications of heating.

✝ CHF 80,000-120,000

US$ 100,000-150,000

604

Featuring a cut-cornered rectangular modified brilliant-cut fancy vivid yellow diamond weighing 10.19 carats, flanked by a pair of trapeze-shaped diamonds, size 52.

Accompanied by GIA report no. 6237496114, dated 3 February 2025, stating that the diamond is Fancy Vivid Yellow, Natural Colour, VS2 Clarity, Excellent Polish and Symmetry.

✝ CHF 320,000-480,000

US$ 390,000-600,000

‘The small inclusions found by microscopic inspection and the analysed properties consistent with those found in rubies from the classical ruby mines in the Mogok Valley in Burma (Myanmar), well known for its wealth in gems and historic times. Their saturated red colour, poetically also referred to as ‘pigeon blood red’, is due to a combination of well-balanced trace elements, which are typical and characteristic of the finest rubies from Mogok.’

Excerpt from the SSEF Appendix Letter

605

BOUCHERON

ELEGANT PAIR OF RUBY AND DIAMOND PENDENT EARCLIPS

Each centring an oval ruby weighing 3.98 and 3.26 carats respectively, framed by tapered baguette diamonds, from surmounts of similar design centring circular-cut rubies, accented by marquise-shaped and brilliant-cut diamonds, signed Boucheron Paris, numbered, maker’s mark for Jean Bondt, French assay marks for platinum, pouch stamped Boucheron; circa 1960.

Accompanied by SSEF report no. 151603, dated 22 January 2026, stating that the rubies weighing 3.98 and 3.26 carats are of Burmese origin, with no indications of heating, stating ‘Pigeon Blood’ colour, together with an appendix letter.

✝ CHF 95,000-140,000

US$ 120,000-180,000

606

PROPERTY FROM A DISTINGUISHED EUROPEAN COLLECTION

EMERALD AND DIAMOND RING

Set with a step-cut emerald weighing 11.49 carats, between baguette diamond shoulders, size 51, maker’s mark for Société Dupeguy, French assay marks for platinum and gold.

Accompanied by SSEF report no. 150082, dated 24 November 2025, stating that the emerald is of Colombian origin, with a moderate amount of oil in fissures.

✝ CHF 85,000-170,000

US$ 110,000-210,000

607

CARTIER

SAPPHIRE AND DIAMOND RING

Set with a step-cut sapphire weighing 15.81 carats between baguette, bulletand fancy-shaped diamond shoulders, size 51, signed Cartier, case stamped Cartier.

Accompanied by SSEF report no. 153710, dated 30 March 2026, stating that the sapphire is of Ceylon origin, with no indications of heating; together with a gemmological report and a Gübelin report.

✝ CHF 90,000-170,000

US$ 110,000-220,000

608 (as a bangle featuring both clips)

608 (alternate view as bangle with one clip)

608

DIAMOND DOUBLE CLIP/ BANGLE COMBINATION

The detachable clips of geometric design set with bullet-shaped, square, hexagonal, single- and old Europeancut diamonds, together with a pair of sprung bangles applied with black lacquer, one intended to feature both clips, the other intended to feature one clip, inner circumference approximately 145mm, signed Cartier, numbered, two cases stamped Cartier; 1930s.

✝ CHF 95,000-140,000

US$ 120,000-180,000

608 (alternate view as a pair of clips)

IMPRESSIVE EMERALD AND DIAMOND RING

Featuring a step-cut emerald weighing 14.19 carats within a tiered border set with fancy-shaped, brilliant- and rosecut diamonds, size 53.

Accompanied by Gübelin report no. 16057045, dated 30 May 2016, stating that the emerald is of Colombian origin, with no indications of clarity enhancement; together with an SSEF report.

✝ CHF 280,000-480,000

US$ 300,000-610,000

VERY FINE DIAMOND RING

Featuring two marquise-shaped diamonds weighing 7.20 and 6.68 carats respectively, size 521/2

Accompanied by GIA reports no. 5221819124, dated 2 August 2023, and no. 5222048232, dated 30 July 2024, stating that the diamonds are D Colour, Internally Flawless, each with Excellent Polish and Symmetry, the diamond weighing 7.20 carats together with a type IIa classification letter.

✝ CHF 560,000-800,000

US$ 700,000-1,000,000

PART OF THE PROCEEDS WILL BENEFIT THE CHARITABLE ORGANISATION AKSHAYA PATRA

ATTRACTIVE FANCY PINK DIAMOND

The unmounted pear modified brilliantcut fancy pink diamond weighing 4.12 carats.

Accompanied by GIA report no. 7333332362, dated 26 March 2026, stating that the diamond is Fancy Pink, Natural Colour, Internally Flawless, Excellent Polish, together with a type IIa classification letter.

✝ CHF 800,000-1,600,000

US$ 1,000,000-2,000,000

AKSHAYA PATRA

Akshaya Patra is the world’s largest NGO school meal programme, providing hot, nutritious lunches to over 2.35 million children in over 24,000 schools across India every day.

‘Akshaya Patra’ means the unlimited bowl of abundance and sustenance. Founded in 2000, the NGO grew steadily and has already served more than 5 billion meals over the last two decades. It operates in sixteen Indian states and two union territories. Every meal is prepared in one of Akshaya Patra’s 78 kitchens, using local produce, before being transported hot in a custom-designed van up to a distance of 40 kilometers.

Often being the only meal in the day for the child, it serves as a critical intervention addressing hunger and education. Impact studies show Akshaya Patra’s meal programme has resulted in an increased enrollment and retention, especially noteworthy among girls and young women, an improved nutritional status, lower dropout rates in educational programmes, improved focus in the classroom and overall academic performance as well as strengthened social development.

With cost efficient kitchen design, streamlined supply chains and effective distribution, Akshaya Patra is able to feed one child with just $20 per year.

MAGNIFICENT EMERALD AND DIAMOND NECKLACE

(LOT 612)

FROM A ROYAL COLLECTION

MAGNIFICENT EMERALD AND DIAMOND NECKLACE

Featuring a graduated fringe of dropshaped emeralds weighing 57.82, 40.20, 31.77, 29.26, 28.65, 28.61, 26.14, 24.75, 21.13, 17.19, 16.80, 13.41 and 11.38 carats respectively, centring a cabochon emerald weighing 11.76 carats, set with baguette, old mine-, old European and single-cut diamonds, inner circumference approximately 410mm; circa 1950.

Accompanied by thirteen AGL reports, dated 25 March to 23 April 2025, stating that the drop-shaped emeralds weighing a total of 347.11 carats, are of Colombian origin, seven emeralds with a minor amount of oil, three emeralds with a minor to moderate amount of oil and three emeralds with a moderate amount of oil in

fissures; together with Gübelin report no. 25100075, dated 27 October 2025, stating that the cabochon emerald weighing 11.76 carats is of Colombian origin, with a minor amount of oil in fissures.

✝ CHF 800,000-1,600,000 US$ 1,000,000-2,000,000

□ 613 NO RESERVE

SAPPHIRE AND DIAMOND RING

Featuring a cushion-shaped sapphire weighing 7.80 carats, flanked by a pair of pear-shaped diamonds, size 51.

Accompanied by Gübelin report no. 21082093, dated 1 September 2021, and SSEF report no. 103489, dated 9 November 2018, each stating that the sapphire is of Burmese origin, with no indications of heating; together with GIA report no. 1156074806, dated 5 November 2012, stating that the diamond weighing 1.17 carats is I Colour, VS1 Clarity.

✝ CHF 95,000-160,000

US$ 120,000-200,000

614

PROPERTY FROM A DISTINGUISHED EUROPEAN COLLECTION

VAN CLEEF & ARPELS

IMPORTANT RUBY AND DIAMOND RING

Set with a cushion-shaped ruby weighing 6.51 carats within a brilliantcut diamond surround, between shieldshaped diamond shoulders, size 491/2, signed Van Cleef & Arpels.

Accompanied by SSEF report no. 15081, dated 24 November 2025, stating that the ruby is of Burmese origin, with no indications of heating and a minor amount of oil in fissures; together with a gemmological report.

✝ CHF 300,000-500,000

US$ 380,000-610,000

DE BEERS

THE CONTEMPORARY CELEBRATION: DE BEERS DIAMONDS

Today diamonds continue to fascinate not only for their origins, but for the way they interact with light and design. In the hands of master craftsmen, rough stones are transformed through cutting and polishing into objects of extraordinary brilliance. Each facet is carefully positioned to reveal the stone’s natural radiance. A diamond jewel represents two forms of artistry: nature’s creation and human craftsmanship. The result is a work of art designed to be worn.

De Beers diamonds embody this unique dialogue between nature and human creativity. Each stone begins its journey deep within the Earth, formed over billions of years before emerging through ancient geological forces. Carefully selected and expertly crafted, these diamonds reveal the full beauty of their natural brilliance. Their rarity, authenticity and origin make them enduring symbols of elegance and meaning. They are not simply jewels; they are icons of nature itself.

THE ENDURING ICON

This is the enduring power of a diamond: a fragment of deep time, transformed into light. Diamonds existed long before us, and they will endure long after us. Within their brilliance lives the memory of the Earth’s beginnings, the imagination of countless cultures and the stories of the people who wear them.

DIAMONDS: NATURE’S RAREST CREATIONS

Diamonds are among the most remarkable natural objects on Earth. Formed billions of years ago deep within the planet under intense heat and pressure, they are crystalline records of geological time. Each diamond is unique, shaped by the conditions of its formation and the geological journey that carried it toward the surface. Their unmatched hardness, rarity, and ability to refract and disperse light have made them enduring symbols of purity, strength, and permanence across civilizations.

Throughout history, diamonds have also held powerful cultural meaning. Long before their scientific origins were understood, they were revered in myth and philosophy as objects of protection, enlightenment, and divine energy. Across cultures, they came to represent moments of lasting human significance, celebrations of love, achievement, and memory, helping to establish the diamond as one of the world’s most enduring natural icons.

THE GLOBAL JOURNEY OF DIAMONDS

Diamonds have long travelled across continents through trade, imagination, and storytelling. In China, the diamond first appeared not as adornment but as a tool capable of cutting jade, the most revered of Chinese stones. Historical records describe it arriving through ancient trade routes, carrying with it knowledge, craftsmanship, and mythic stories from distant lands. Over centuries, the diamond became embedded in Chinese culture through philosophy, literature, and spiritual symbolism, most famously in the Buddhist Diamond Sutra, where the stone represents clarity capable of cutting through illusion.

A NEW COLLABORATION

The unveiling of this pair of perfectly matched round brilliant-cut diamonds (lot 617), each weighing precisely 18.38 carats, marks the beginning of a new partnership between De Beers and Sotheby’s to present exceptional diamonds as cultural works of art. These diamonds will headline Sotheby’s international auction moments starting in Hong Kong, Geneva, and New York. Each diamond will be showcased with curated storytelling highlighting the origin, craftsmanship, and cultural significance.

□ 615 NO RESERVE

PART OF THE PROCEEDS WILL BENEFIT THE PEACE PARKS FOUNDATION

UNMOUNTED LIGHT PINK DIAMOND

The unmounted oval mixed-cut light pink diamond weighing 1.10 carat.

Accompanied by GIA report no. 2201492002, dated 9 April 2026, stating that the diamond is Light Pink, Natural Colour.

✝ CHF 65,000-95,000

US$ 80,000-120,000

□ 616 NO RESERVE

PART OF THE PROCEEDS WILL BENEFIT THE PEACE PARKS FOUNDATION

UNMOUNTED VERY LIGHT PINK DIAMOND

The unmounted cut-cornered square modified brilliant-cut very light pink diamond weighing 1.06 carat.

Accompanied by GIA report no. 2105562775, dated 9 April 2026, stating that the diamond is Very Light Pink, Natural Colour, I1 Clarity.

✝ CHF 32,000-48,000

US$ 40,000-60,000

PEACE PARKS FOUNDATION

LOTS 615 & 616

De Beers believe natural diamonds can do more than sparkle. They can help societies thrive. They can make life brilliant. De Beers’ commitment to sustainability through Building Forever, is how they translate rarity into responsibility – aiming to help create sustainable, lasting impact that endures beyond diamonds for the countries, communities and ecosystems that make their business possible.

Diamonds are one of nature’s greatest and most beautiful treasures, formed up to 3 billion years ago, and found in some of the world’s most remote, beautiful, and wild environments. Working in these ecosystems requires extreme care for nature. De Beers has managed nature reserves in Southern Africa for more than 130 years, and their sites have biodiversity management programmes to avoid, reduce, or restore our impact on nature. Through partnerships like Peace Parks Foundation, today, De Beers’ conservation efforts are helping to protect vast swathes of land and keystone species across Southern Africa.

IMPORTANT AND PERFECTLY MATCHED PAIR OF UNMOUNTED DIAMONDS

18.38 CARATS EACH

IMPORTANT AND PERFECTLY MATCHED PAIR OF UNMOUNTED DIAMONDS

The two brilliant-cut diamonds each weighing 18.38 carats.

Accompanied by GIA reports no. 2235260270 and no. 5231260274, each dated 16 April 2026, stating that the diamonds are D Colour, Flawless respectively, each with Excellent Cut, Polish and Symmetry, together with type IIa classification letters.

✝ CHF 2,200,000-2,800,000 US$ 2,800,000-3,500,000

VAN CLEEF & ARPELS

SPECTACULAR DIAMOND

PENDENT NECKLACE

The detachable brooch/pendant designed as a tiered cluster of pear-, marquiseshaped and brilliant-cut diamonds, on a slightly graduated necklace composed of alternating clusters set with brilliantcut and pear-shaped diamonds, length approximately 500mm, detachable to be worn as a bracelet, length approximately 175mm, and a choker, length approximately 330mm, signed Van Cleef & Arpels, numbered, maker’s marks for Société Charles Profillet and Van Cleef & Arpels, French assay marks for platinum and gold. Accompanied by a gemmological report.

✝ CHF 425,000-625,000

US$ 540,000-780,000

CARTIER

ATTRACTIVE SAPPHIRE AND DIAMOND BRACELET

The oval sapphire weighing 7.04 carats, bordered by brilliant-cut diamonds, within an openwork geometric baguette and brilliant-cut diamond bracelet, highly articulated, length approximately 160mm, signed Cartier, case stamped Cartier; circa 1950

Accompanied by SSEF report no.77145, dated 17 October 2014, Gübelin report no.15025167, dated 15 February 2015, and AGL report no. CS 64504, dated 21 November 2014, each stating that the sapphire is of Kashmir origin, with no indications of heating.

✝ CHF 400,000-630,000

US$ 500,000-800,000 619

enlarged

THE PEACOCK OF CEYLON

THE PEACOCK OF CEYLON IMPORTANT UNMOUNTED SAPPHIRE

The unmounted cushion-shaped sapphire weighing 102.40 carats.

Accompanied by SSEF report no. 129570, dated 30 May 2023, stating that the sapphire is of Ceylon origin, with no indications of heating, together with an appendix letter and a Gübelin report; further accompanied by a GRS platinum rarity award with appendix letter.

✝ CHF 1,000,000-1,500,000

US$ 1,300,000-1,900,000

‘The attractive blue colour of this sapphire is due to a combination of well-balanced trace elements, which are typical and characteristic of the finest sapphires from Ceylon.’

Excerpt from the SSEF Appendix Letter

AN EXCEPTIONAL AND RARE FANCY VIVID BLUE DIAMOND

6.03 CARATS

AN EXCEPTIONAL AND RARE FANCY VIVID BLUE DIAMOND

FANCY VIVID BLUE DIAMONDS

Only 0.3% of all diamonds display a colour that is predominantly blue. Of this only a very small subsection qualifies as Fancy Vivid Blue. In a study comprising over 462 blue diamonds, the Gemmological Institute of America (GIA) graded merely 1% as Fancy Vivid Blue. Research conducted by the GIA established that blue diamonds are formed far deeper in the Earth’s mantle than any other diamonds. Furthermore, the worldrenowned laboratory also discovered an inherent link between blue diamonds and the oceanic waters.

GRADING BLUE DIAMONDS

Blue diamonds occur in a wide range of tones, but only in a relatively small range of saturation. As the grade boundaries are more nuanced than is the case for other coloured diamonds, longstanding experience is required to face the challenges of grading blue diamonds. The differences in tone can easily be misinterpreted as differences in saturation to the inexperienced eye.

SOURCES

From the 1860s onwards, South Africa emerged as the predominant source, not just of large and beautiful colourless diamonds, but occasionally of rare fancy coloured diamonds as well. South African mines that are known to have produced blue diamonds include Jagersfontein and Koffiefontein, both of which were located near Kimberley. Smaller sources were also found at the Bellsbank mine near Barkly West and at the Helam mine in Swartsruggens. Very rarely, blue diamonds have been found in alluvial deposits at Lichtenburg in the Western Transvaal. Historically, central Africa has been a source, particularly the Congo and Angola. Other West African countries such as Guinea and Sierra Leone are also known to have produced blue diamonds. Outside of Africa, blue diamonds have also been discovered in Borneo.

TYPE IIB DIAMONDS

The type IIb classification signifies that a small amount of the trace element boron is present in a diamond’s chemical composition. Boron in turn contributes strongly to the blue appearance of the diamond, which is also related to exposure to high pressure during the formation process. An unusual property of type IIb diamonds is their high electric conductivity.

BORON AND OCEANIC CRUSTAL SUBDUCTION

Boron is a chemical element that is concentrated in rocks and sediments near the Earth’s surface. When these crustal rocks weather and decompose, boron is filtered into rivers where it is delivered as dissolved chemical elements into the ocean. In mantle rocks, however, the concentration of boron is very low.

Recent scientific studies suggest that boron, incorporated in clays and other minerals in the oceanic crust, is carried down into the mantle along with hydrous minerals by a conveyor-like-process which is called oceanic crustal subduction by geologists. In the mantle, these crustal minerals break down and release a boron-rich fluid that triggers diamond formation.

FORMATION

It is possible for geologists to age-date the formation of rough diamond crystals based on tiny amounts of radioactive mineral inclusions which get trapped in the growing crystals. It is now known that diamond formation began as much as 3.5 billion years ago, and the resulting crystals then remained deep in the earth for millions of years, before being emplaced near the earth’s surface in more recent geological times. Most blue diamonds contain boron and little to no nitrogen, they display an irregular crystal lattice and can sometimes occur in large sizes. These features suggest formation under different geologic conditions compared to the majority of colourless diamonds. Blue diamonds can also contain mineral inclusions which allow geologists to deduce information on the depth and host rock during the diamond’s formation. The minerals encountered within these inclusions are only found together in environments exposed to high pressure, extremely deep inside the Earth’s mantle. These mineral inclusions allow scientists to conclude that blue diamonds formed at a depth of 400 to 600 kilometers within the Earth’s mantle. In contrast, the majority of near-colourless diamonds were created between 150 and 200 kilometers below the Earth’s surface and resided there for millions of years before volcanic eruptions emplaced them near the Earth’s surface. Therefore, blue diamonds are formed much deeper within the Earth’s mantle than the vast majority of other diamonds.

AN EXCEPTIONAL AND RARE FANCY VIVID BLUE DIAMOND RING

Featuring a cushion-shaped fancy vivid blue diamond weighing 6.03 carats, size 53.

Accompanied by GIA report no. 2231458438, dated 10 February 2025, stating that the diamond is Fancy Vivid Blue, Natural Colour, Internally Flawless; together with a type IIb classification letter, as well as a letter attesting to the rarity of the stone and that it originated from the Cullinan mine in South Africa. Further accompanied by a GIA Monograph.

✝ CHF 7,200,000-9,600,000 US$ 9,000,000-12,000,000

PROPERTY FROM AN IMPORTANT EUROPEAN COLLECTION

LOTS 622-625

PROPERTY FROM AN IMPORTANT EUROPEAN COLLECTION

RUBEL FRÈRES

ATTRACTIVE DIAMOND SAUTOIR

Composed of geometric links set with old European- and single-cut diamonds, alternating with baguette diamonds, suspending a highly articulated, detachable pendant, length approximately 590mm, unsigned, maker’s mark for Rubel Frères, French assay marks for platinum; 1920s.

LITERATURE

Sophie Mizrahi-Rubel and Eric Schneider (eds), John Rubel, Paris, 2013, pgs. 88, 89, 92, 128 and 183 for design drawings of stylistically similar sautoirs by Rubel Frères.

✝ CHF 80,000-120,000

US$ 100,000-150,000

RUBEL FRÈRES

Founded in Paris in 1915 by the Hungarian-born brothers Jean and Robert Rubel, Rubel Frères established their workshop at 22 rue Vivienne, not far from the Place Vendôme. Within a decade they had built a reputation for exceptional craftsmanship that brought them to the attention of the most prestigious jewellers in Paris, among them Van Cleef & Arpels, Ostertag and other distinguished houses of the Place Vendôme, for whom they produced some of the defining pieces of the Art Deco era, eventually relocating to a larger premises at 16 avenue de l’Opéra.

In 1939, with war approaching, the brothers moved to New York, where they continued their success before striking out independently in 1943, opening John Rubel & Co. at 777 Fifth Avenue. It was during this American chapter that their celebrated series of dancer and ballerina brooches, conceived with designer Maurice Duvalet, would captivate a new clientele that included Ingrid Bergman and the great American jewellery firms. Their work remains among the most sought-after of the Art Deco period.

PROPERTY FROM AN IMPORTANT EUROPEAN COLLECTION

ATTRIBUTED TO VAN CLEEF & ARPELS

IMPRESSIVE DIAMOND BRACELET

The openwork band of foliate and geometric design millegrain-set with old European- and single-cut diamonds, flanked by a similarly set articulated ruff, length approximately 190mm, unsigned, numbered, French assay marks for platinum; 1920s.

✝ CHF 65,000-95,000

US$ 80,000-120,000

PROPERTY FROM AN IMPORTANT EUROPEAN COLLECTION

LACLOCHE FRÈRES

ELEGANT PAIR OF RUBY AND DIAMOND PENDENT EARCLIPS

Of chandelier design, featuring dropshaped rubies within a geometric surround pavé-set with with circularand single-cut diamonds, accented by marquise-shaped and baguette diamonds, partially signed Lacloche Paris, numbered, maker’s marks for Rubel Frères, French assay marks for platinum, one small ruby and one small diamond deficient; circa 1928.

✝ CHF 40,000-80,000

US$ 50,000-100,000

CRAVATE NECKLACES

The late 1920s to the early 1930s, saw a short-lived flowering of highly distinct and articulated ‘cravate’ or ‘tie’ necklaces. These elaborate jewels terminated in a long pendant or tassel that could be worn at the front of a dress, or draped asymmetrically over one shoulder. The style lent itself perfectly low-cut dresses, a sumptuous jewel for a sartorial choice that would have been scandalous in the not-so-distant past. Glamorous, sleek and slinky gowns of satin cut on the bias featured prominently in the evening fashions of the early 1930s, as exemplified by the designer Madeleine Vionnet. The finely articulated, fabric-like quality of the tie-necklace complements this aesthetic to perfection and encapsulates all the style, beauty and allure of the era.

Several maisons on Place Vendôme made variations on the style including Lacloche Frères, Van Cleef & Arpels and Mauboussin. The tie-necklace is a prime example of Lacloche Frères’ creative forces. During the 1920s, Parisian jewelers had created a variety of

long, articulated, richly adorned shoulder brooches; the tie-necklace may be viewed, in part, as an evolution of this form. Furthermore, tie-necklaces provided ample frameworks in which to showcase the highly geometricized links and variously shaped diamonds that characterise the art deco style. Similar necklaces set throughout with diamonds or accented by emerald drops featured prominently in Lacloche Frères’ publicity illustrations of the period.

By the mid-1930s, the taste for long necklaces had given way to shorter bib styles and collars and thus the tie-necklaces seem to have been discontinued by 1935. The lavish nature of tie-necklaces was such that only a handful of examples were ever produced. As virtuosic showpieces displaying the jeweler’s art at its best, they were captured on the pages of Vogue and worn by movie stars such as Mary Pickford. It is exceedingly rare to find an intact tie-necklace and the example offered here is only the second one of its kind to come to auction in the recent times.

PROPERTY FROM AN IMPORTANT EUROPEAN COLLECTION

LACLOCHE FRÈRES

SUPERB AND RARE RUBY AND DIAMOND ‘CRAVATE’ NECKLACE

The front featuring an elongated, highly articulated tassel, set with drop-shaped rubies within a geometric surround pavé-set with with circular- and singlecut diamonds, accented by marquiseshaped and baguette diamonds, length approximately 360mm, adjustable to 340mm, detachable to be worn as a pair of bracelets with an additional clasp fitting, each length approximately 170mm, signed Lacloche Frères, maker’s marks for Rubel Frères, French assay marks for platinum; circa 1928

LITERATURE

Laurence Mouillefarine, Véronique Ristelhueber, Lacloche Joailliers, Paris, 2019, p. 188 and 200 for publicity images for Lacloche Frères featuring necklaces of similar design. ✝ CHF 160,000-280,000 US$ 200,000-350,000

FINE JEWELRY

GENEVA 29 APRIL - 14 MAY 2026

FEATURING JEWELS FROM THE COLLECTION OF NINA GENILLARD

1. RECHERCHER

Rendez-vous sur sothebys.com ou sur l’application Sotheby’s pour rechercher des œuvres qui vous intéressent.

2. S’ENREGISTRER

Enregistrez-vous afin d’enchérir.

POUR PLUS DE RENSEIGNEMENTS RELATIFS A L’ENREGISTREMENT ET LA PARTICIPATION AUX ENCHERES enquiries@sothebys.com | bids.geneva@sothebys.com GE +41 (0) 22 908 48 00 sothebys.com/bidonline SUIVEZ-NOUS @SOTHEBYS

3. ENCHÉRIR

Enchérissez avant et pendant la vente où que vous soyez.

Nous fournissons ce catalogue pour la commodité de nos clients. Veuillez noter que la vente de tous les lots est soumise aux Conditions Générales de Vente applicables aux Acheteurs de Sotheby’s (incluant notre Garantie d’Authenticité) qui peuvent être consultées sur la page de vente correspondante sur www.sothebys.com ou en scannant le QR code ci-dessous, aux Conditions Générales de Vente applicables aux Vendeurs (qui sont disponibles sur demande), au glossaire des termes, et aux autres notices ou annonces dans le catalogue de vente sur la page de vente correspondante sur www.sothebys.com ou dans la salle de vente. Veuillez contacter enquiries@sothebys. com pour demander une copie papier de nos Conditions Générales de Vente.

SYMBOLES

□ Absence de prix de réserve

À moins que le symbole suivant en forme de case (□) ne soit indiqué, tous les lots inclus dans la vente sont proposés à la vente avec un prix de réserve. Le prix de réserve est le prix d’adjudication minimum confidentiel arrêté avec le vendeur et au-dessous duquel le lot ne peut être vendu. En général, le prix de réserve est fixé à un pourcentage de l’estimation basse. Ce prix ne pourra pas être fixé à un montant supérieur à l’estimation basse du lot. Si des lots inclus dans une vente sont proposés à la vente sans prix de réserve, ces lots sont indiqués par le symbole suivant, en forme de case (□). Si tous les lots inclus dans une vente sont proposés à la vente sans prix de réserve, une mention spéciale figurera dans le catalogue et ce symbole ne sera alors pas utilisé dans la description de chaque lot.

○ Lot garanti

Un prix minimum lors d’une vente aux enchères ou d’un ensemble de ventes aux enchères a été garanti au vendeur des lots accompagnés de ce symbole. Cette garantie peut être émise par Sotheby’s, ou conjointement par Sotheby’s et un tiers. Sotheby’s ainsi que tout tiers émettant une garantie conjointement avec Sotheby’s retirent un avantage financier si un lot garanti est vendu et risquent de subir une perte si le lot demeure invendu. Un tiers qui est garant conjointement avec Sotheby’s peut émettre un ordre d’achat irrévocable ou enchérir d’une autre manière sur le lot garanti. Si le symbole « propriété garantie » pour un lot n’est pas inclus dans la version sur papier ou en format PDF du catalogue (le cas échéant) de la vente aux enchères, une annonce indiquant que ce lot fait l’objet d’une garantie sera faite aux enchérisseurs par un ou plusieurs des moyens suivants: la page en ligne du lot sera mise à jour pour inclure le symbole « Propriété garantie », une mention sera ajoutée sur la page en ligne de Sotheby’s pour la vente aux enchères, ou une annonce sera effectuée au début de la vente ou avant la vente du lot pour indiquer que le lot fait l’objet d’une garantie. Si tous les lots d’une vente sont garantis, une mention spéciale figurera dans le catalogue et ce symbole ne sera alors pas utilisé dans la description de chaque lot.

⋑ Ordre irrévocable Ce symbole signifie que Sotheby’s a reçu pour le lot un ordre d’achat irrévocable qui sera exécuté durant la vente à un montant garantissant que le lot se vendra. L’enchérisseur irrévocable reste libre d’enchérir au-dessus du montant de son ordre et il peut recevoir une rémunération fixe

et/ou conditionnelle s’il n’est pas l’adjudicataire. Il peut arriver qu’un actionnaire de Sotheby’s porte un ordre d’achat irrévocable. Sotheby’s peut parfois passer des accords pour des ordres irrévocables couvrant plusieurs lots. Dans ce cas, la rémunération versée par Sotheby’s à l’enchérisseur irrévocable est appliquée au lot dont l’enchérisseur irrévocable n’est pas l’adjudicataire. Dans ces circonstances, la compensation totale en faveur de l’enchérisseur irrévocable ne dépassera pas la commission d’achat totale et les autres montants payés à Sotheby’s pour tous les lots pour lesquels l’enchérisseur irrévocable n’est pas l’adjudicataire. Si un ordre irrévocable est passé après (le cas échéant) la date d’impression du catalogue ou de sa production en format PDF, une annonce sera faite aux enchérisseurs pour indiquer qu’il existe un ordre irrévocable sur le lot, par un ou plusieurs des moyens suivants : une mention du symbole « ordre irrévocable » sera ajoutée sur la page en ligne du lot, une notice sera ajoutée sur la page en ligne de Sotheby’s pour la vente aux enchères ou une annonce sera faite avant le début de la vente ou avant la vente du lot, indiquant que celui-ci a fait l’objet d’un ordre irrévocable. Il peut arriver que Sotheby’s ou une société affiliée financent l’enchérisseur irrévocable en lien avec l’ordre irrévocable. De plus, l’enchérisseur irrévocable peut parfois avoir connaissance du montant d’une garantie. Si l’enchérisseur irrévocable dispense des conseils à une personne en rapport avec le lot, Sotheby’s exige qu’il divulgue ses intérêts financiers concernant la vente du lot. Si un agent vous conseille ou enchérit pour votre compte sur un lot faisant l’objet d’un ordre irrévocable, vous devez exiger que l’agent divulgue s’il a ou non des intérêts financiers dans la vente du lot.

⊻ Parties intéressées Ce symbole signifie, pour les lots qu’il accompagne, que des personnes ayant un intérêt direct ou indirect dans la vente du lot, notamment (i) un bénéficiaire d’une succession qui vend le lot ou (ii) le copropriétaire d’un lot pourront enchérir sur le lot. Si la partie intéressée est l’adjudicataire, elle devra payer la totalité de la commission d’achat et de la commission de frais généraux (si applicable). Dans certains cas, les personnes intéressées peuvent avoir connaissance du prix de réserve. Dans le cas où la participation d’une personne intéressée à la vente d’un lot n’est connue qu’après la date d’impression du catalogue de la vente ou de sa production en format PDF, une annonce sera faite aux enchérisseurs pour indiquer que des personnes intéressées pourront enchérir sur le lot, par un ou plusieurs des moyens suivants : la page en ligne du lot inclura le symbole « parties intéressées », une notice sera ajoutée sur la page en ligne de Sotheby’s pour la vente aux enchères ou une annonce sera effectuée avant le début de la vente ou avant la vente du lot pour indiquer que des personnes intéressées pourront enchérir sur le lot.

⊕ Biens assujettis au droit de suite

L’acquisition d’un Lot marqué de ce symbole (⊕) est soumise au paiement du droit de suite, dont le montant représente un pourcentage du prix d’adjudication calculé comme suit, à condition que le prix d’adjudication soit égal ou supérieur à 750 euros :

Tranche du prix d’adjudication (en €)Taux du droit de suite

De 0 à 50 000 € 4%

De 50 000,01 à 200 000 € 3%

De 200 000,01 à 350 000 € 1%

De 350 000,01 à 500 000 € 0,5%

Au-delà de 500 000 € 0,25%

Le montant du droit de suite dû résulte de la somme des montants calculés selon les tranches indiquées ci-dessus, et ne pourra excéder 12 500 euros pour chaque bien à chaque vente de celui-ci. Le montant maximum du droit de suite de 12 500 euros s’applique pour les biens adjugés à 2 millions d’euros et au-delà.

◉ Présence de matières restreignant l’importation ou l’exportation

Des lots accompagnés de ce symbole ont été identifiés, lors de leur cataloguage, comme contenant des matières organiques qui peuvent impliquer des restrictions sur l’importation ou l’exportation. Ces informations sont mises à la disposition des acheteurs uniquement pour leur convenance, mais l’absence de ce symbole ne garantit pas qu’il n’y ait pas de restrictions sur l’importation ou l’exportation d’un lot. Veuillez également vous référer au paragraphe « Espèces Menacées » dans le présent Guide ainsi qu’aux Conditions Générales de Vente applicables aux Acheteurs. L’impossibilité d’un acheteur d’exporter ou d’importer un lot comportant ce symbole ne constitue pas une justification pour un retard de paiement ou un motif d’annuler la vente.

∏ Monumental

Des lots accompagnés de ce symbole peuvent, à notre avis, nécessiter une manutention ou des services d’expédition spéciaux en raison de leur taille ou d’autres attributs physiques. Il est conseillé aux acheteurs d’inspecter le lot et de contacter Sotheby’s avant la vente afin de discuter de toutes exigences particulières pour l’expédition.

✧ Lot Premium

Pour enchérir sur des « Lots Premium » (accompagnés du symbole dans les catalogues papier imprimés ou du symbole ✧ sur la page en ligne du lot), il vous sera demandé de compléter une demande de pré-enregistrement pour Lots Premium. Vous devez faire en sorte que Sotheby’s reçoive votre demande de pré-enregistrement au moins trois jours ouvrables avant la vente. Veuillez garder à l’esprit que nous ne sommes pas en mesure d’obtenir des références bancaires pendant les week-ends ou les jours fériés. La décision de Sotheby’s d’accepter ou non une demande de pré-enregistrement est définitive. Si votre demande est acceptée, vous recevrez un numéro de raquette spécial. Si tous les lots du catalogue sont des « Lots Premium », une mention spéciale sera incluse à cet effet et le symbole ne sera pas utilisé pour chaque lot.

Paiements en cybermonnaie

Ce symbole signifie qu’il est possible de payer en cybermonnaie pour l’achat du lot correspondant, selon les paramètres définis dans les Conditions Générales de Vente applicables aux Acheteurs qui s’appliquent à la vente concernée et uniquement aux termes et selon les conditions qui y figurent à la date de la vente. Si vous souhaitez payer en cybermonnaie, veuillez consulter ces termes et conditions et contacter le Post Sale Services de Sotheby’s pour de plus amples informations. ♢ Vins et spiritueux en suspension des droits d’accises et de TVA

Les lots marqués ♢ sont uniquement vendus sous douane. Veuillez vous référer à la section intitulée « TVA et autres informations fiscales » relatives aux vins et spiritueux pour de plus amples informations sur ces lots.

We have provided these materials as a convenience for our clients. Please note that all lots are being offered for sale subject to Sotheby’s Conditions of Business for Buyers (which include our Authenticity Guarantee) that can be located on the relevant sale page on www.sothebys.com or by scanning the QR code below, the Conditions of Business for Sellers (which are available upon request), and any other notices or announcements in the sale catalogue on the relevant sale page on www.sothebys.com or in the saleroom. Please contact enquiries@sothebys.com to request a physical copy of our Conditions of Business.

⋑ Irrevocable Bids

□ Reserves

Unless indicated by a box (□), all lots included in this sale are offered subject to a reserve. A reserve is the confidential hammer price established between Sotheby’s and the seller and below which a lot will not be sold. The reserve is generally set at a percentage of the low estimate and will not exceed the low estimate for the lot. If any lots included in a sale are offered without a reserve, these lots are indicated by a box (□). If every lot included in a sale is offered without a reserve, a Special Notice will be included to this effect and the box symbol will not be used for each lot.

○ Guaranteed Property

The seller of lots with this symbol has been guaranteed a minimum price from one auction or a series of auctions. This guarantee may be provided by Sotheby’s or jointly by Sotheby’s and a third party. Sotheby’s and any third parties providing a guarantee jointly with Sotheby’s benefit financially if a guaranteed lot is sold successfully and may incur a loss if the sale is not successful. A third party providing a guarantee jointly with Sotheby’s may provide an irrevocable bid, or otherwise bid, on the guaranteed property. If the Guaranteed Property symbol for a lot is not included in the printed or pdf auction catalogue (where applicable), then Sotheby’s will notify bidders that there is a guarantee on the lot by one or more of the following means: the lot’s specific webpage will be updated to include the guaranteed property symbol, a notice will be added to the Sotheby’s webpage for the auction, or a pre-sale or pre-lot announcement will be made indicating that there is a guarantee on the lot. If every lot in a sale is guaranteed, a Special Notice will be included to this effect and this symbol will not be used for each lot.

Lots with this symbol indicate that a party has provided Sotheby’s with an irrevocable bid on the lot that will be executed during the sale at a value that ensures that the lot will sell. The irrevocable bidder, who may bid in excess of the irrevocable bid, may be compensated for providing the irrevocable bid by receiving a contingent fee, a fixed fee or both if not the successful bidder. From time to time, a Sotheby’s shareholder may be an irrevocable bidder. From time to time, Sotheby’s may enter into irrevocable bid agreements that cover multiple lots. In such instances, the compensation Sotheby’s will pay the irrevocable bidder is allocated to the lots for which the irrevocable bidder is not the successful purchaser. Under such circumstances, the total compensation to the irrevocable bidder will not exceed the total buyer’s premium and other amounts paid to Sotheby’s in respect of any lots for which the irrevocable bidder is not the successful bidder. If the irrevocable bid is not secured until after the auction catalogue is printed or any pdf auction catalogue is finalised (where applicable), Sotheby’s will notify bidders that there is an irrevocable bid on the lot by one or more of the following means: the lot’s specific webpage will be updated to include the irrevocable bid symbol, a notice will be added to the Sotheby’s webpage for the auction, or a pre-sale or pre-lot announcement will be made indicating that there is an irrevocable bid on the lot. From time to time, Sotheby’s or any affiliated company may provide the irrevocable bidder with financing related to the irrevocable bid. In addition, from time to time, an irrevocable bidder may have knowledge of the amount of a guarantee. If the irrevocable bidder is advising anyone with respect to the lot, Sotheby’s requires the irrevocable bidder to disclose his or her financial interest in the lot. If an agent is advising you or bidding on your behalf with respect to a lot identified as being subject to an irrevocable bid, you should request that the agent disclose whether or not he or she has a financial interest in the lot.

⊻ Interested Parties

Lots with this symbol indicate that parties with a direct or indirect interest in the lot may be bidding on the lot, including (i) the beneficiary of an estate selling the lot, or (ii) the joint owner of a lot. If the interested party is the successful bidder, they will be required to pay the full buyer’s premium and overhead premium (if applicable). In certain instances, interested parties may have knowledge of the reserve. In the event the interested party’s possible participation in the sale is not known until after the printing or creation of a pdf auction catalogue, then Sotheby’s will notify bidders that an interested party may bid on the lot by one or more of the following means: the lot’s specific webpage will be updated to include the interested parties symbol, a notice will be added to the Sotheby’s webpage for the auction, or a pre-sale or pre-lot announcement will be made indicating that an interested party may bid on the lot.

⊕ Property Subject to the Artist’s Resale Right

Purchase of lots marked with this symbol (⊕) will be subject to payment of the Artist’s Resale Right, at a percentage of the hammer price calculated as follows if the hammer price is equal to or greater than 750 Euros:

Portion of the hammer price (in €) Royalty Rate

From 0 to 50,000 4%

From 50,000.01 to 200,000 3%

From 200,000.01 to 350,000 1%

From 350,000.01 to 500,000 0.5%

Exceeding 500,000

The Artist’s Resale Right payable will be the aggregate of the amounts payable under the above rate bands, subject to a maximum royalty payable of 12,500 Euros for any single work each time it is sold. The maximum royalty payable of 12,500 Euros applies to works sold for 2 million Euros and above.

◉ Restricted Materials

Lots with this symbol have been identified at the time of cataloguing as containing organic material which may be subject to restrictions regarding import or export. The information is made available for the convenience of buyers and the absence of the symbol is not a warranty that there are no restrictions regarding import or export of the lot. Please also refer to the section on Endangered Species in this Guide and the Conditions of Business for Buyers. A buyer’s inability to export or import any lots with this symbol cannot justify a delay in payment or a sale’s cancellation.

∏ Monumental

Lots with this symbol may, in our opinion, require special handling or shipping services due to size or other physical considerations. Buyers are advised to inspect the lot and to contact Sotheby’s prior to the sale to discuss any specific shipping requirements.

✧ Premium Lot

In order to bid on “Premium Lots” ( in print catalogue or ✧ in the lot’s specific webpage) you will be requested to complete a Premium Lot pre-registration application. You must arrange for Sotheby’s to receive your pre-registration application at least three working days before the sale. Please bear in mind that we are unable to obtain financial references over weekends or public holidays. Sotheby’s decision whether to accept any pre-registration application shall be final. If your application is accepted, you will be provided with a special paddle number. If all lots in the catalogue are “Premium Lots”, a Special Notice will be included to this effect and this symbol will not be used.

Cryptocurrency Payments

Sotheby’s will accept cryptocurrency as payment for lots with this symbol, within the parameters specified in the Conditions of Business for Buyers applicable to the sale and only on the terms and conditions set out therein as of the date of the sale. Please review those terms and conditions if you are interested in paying in cryptocurrency, and contact Post Sale Services for more information.

♢ Wines and spirits offered in bond only Lots marked ♢ are sold in bond only. Please refer to the section entitled ‘VAT and Other Tax Information for Buyers at Wines and Spirits Sales’ for further information on such lots.

Certified Coloured Stone Index

PEARL INDEX (SSEF REPORTS)

EMERALD

FANCY COLOURED

Index of Makers

ANSUINI 520

ATTRIBUTED TO VAN CLEEF & ARPELS 623

BOUCHERON 514, 563, 605

BUCHERER 585

BULGARI 517, 524, 525, 526, 542, 553, 570, 572, 574, 577, 578, 579, 580, 581, 596, 601, 602

BULGARI/WEINGRILL 567

CARTIER 501, 505. 506, 513, 515, 516Z, 535, 556, 583, 584, 599, 607, 608, 619

CHAUMET 507, 509, 551, 552 CHOPARD 575, 587, 588

DAVID WEBB 504, 508 DOLCE & GABBANA ALTA GIOIELLERIA 573

FARAONE 600

GRAFF 534

HARRY WINSTON 536, 538, 539

JACQUES LACLOCHE 569

LACLOCHES FRÈRES 624, 625

MARZO 562

RUBEL FRÈRES 622

STERLÉ 564

TIFFANY & CO. 510, 511, 512

VAN CLEEF & ARPELS 502, 503, 541, 566, 571, 576, 582, 589, 590, 591, 592, 593, 594, 614, 618

Sotheby’s Bespoke invites you to create a piece of jewelry that is entirely your own.

Guided by our experts, each commission evolves from your vision and inspiration into a one-of-a-kind creation, from the careful selection of exceptional gemstones to the refinement of design sketches and the final handcrafting by master artisans. Whether marking a milestone or composing a legacy, each bespoke jewel tells a story that is entirely your own.

PLEASE SCAN THE QR CODE FOR MORE INFORMATION