I N T E R N AT I O N A L I SSU E
N 0. 2 3, F E B RUA RY 20 17
Swiss Gemmological Institute SSEF THE SCIENCE OF GEMSTONE TESTING®
Aeschengraben 26 CH-4051 Basel Switzerland Tel.: +41 61 262 06 40 Fax: +41 61 262 06 41 admin@ssef.ch
www.ssef.ch
EMERALD CLEANING / RARITIES / JADEITE JADE GEMTOF / AGE DATING / PEARLSCAN / SSEF AT AUCTION SSEF COURSES / SSEF IN ASIA / ON-SITE TESTING