The 30th Edition of SSEF Facette is now available

The wait is over! We are proud to announce the publication of the 30th edition of SSEF Facette magazine. This milestone issue continues our three-decade tradition of sharing cutting-edge research and insights from the Swiss Gemmological Institute. 

This 30th issue includes articles on :

Inside the latest Facette Magazine, you’ll find cutting-edge research spanning the full breadth of modern gemmology: from the fast-evolving world of synthetic (coloured) stones and the real challenges they pose for gem identification, to rare finds like Nigerian väyrynenite and interesting emeralds coming out of Zambia.

This year’s highlights include a fascinating look at how unsupervised machine learning is now being used to determine the geographic origin of Paraiba tourmalines — a glimpse into how data science is reshaping a centuries-old discipline. Elsewhere, our experts explore DNA testing for precious corals and the latest spectroscopic techniques for detecting treatments in rubies and sapphires.

Whether you’re a trader, collector, or fellow researcher, Facette 2026 shares insights around the science needed to navigate an increasingly complex market.