News

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...

The latest edition (May 2020) 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.- Age dating of gems- GemTrack™- Laser inscription of gems- DNA fingerprinting of pearls...

BASEL, SWITZERLAND: MAY 19, 2020 - A breakthrough study entitled “DNA fingerprinting: an effective tool for taxonomic identification of precious corals in jewelry”, authored by researchers from the Swiss Gemmological Institute SSEF and the University of Zurich’s Institute of Forensic Medicine (IRM) and recently published in the leading peer-reviewed journal...

The Swiss Gemmological Institute SSEF has become the first gem laboratory worldwide to introduce DNA fingerprinting of ivory as a standard client service. It involves a scientific method that can provide valuable information about the species of ivory being used in jewellery and ornamental objects,...

GemTrack™ links a cut stone to a specific rough stone using gemmological techniques.GemTrack™ is based on a combination of crystallographic, structural, chemical and microscopic analyses that allow for detailed and potentially unique characterisation and fingerprinting of a rough stone. These same features are later investigated...