News

Course materials in traditional Chinese (left) and Japanese (right), now being delivered online at no cost, as part of SSEF’s Understanding Gemstones educational programme.The Swiss Gemmological Institute SSEF has added courses in Japanese and traditional Chinese to its free-of-charge online educational programme, entitled “Understanding Gemstones.”The...

SSEF is honoured to take part in the upcoming edition of the GemGenève show at Palexpo in Geneva. We will be offering coloured gemstone express testing services at our booth A39.SSEF GemGenève Booth A39 03-07 November 2021 (03 November is setup day, goods can be submitted) Tel: +41...

The latest edition (June 2021) of SSEF’s Facette magazine is now available online as a PDF. This magazine brings you reports of our latest gemmological research and findings, courses and other SSEF activities.- The Science of Gem Testing - New Afghan emeralds- Machine learning...

Origin determination of emeralds is a fascinating subject. In our efforts to gain greater insights into gemstones from different origins, SSEF has developed a new machine-learning-assisted chemical data visualization approach for emerald characterisation.The case study compared 168 emeralds from different origins using a t-SNE (t-distributed stochastic neighbor...