News

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...

The latest edition (2019) of SSEF’s Facette magazine has been published. It is now also available online as a PDF. This magazine brings you reports of our latest gemmological research and findings, courses and other SSEF activities.Read and Download Facette SSEF FACETTE NO. 25, 2019 FEATURED ARTICLES:...

SSEF has conducted an extensive research project to establish more specific criteria to detect low-temperature heat treatment, studying more than 200 unheated and heated rubies (rough and faceted stones) from Mozambique. In combination with close microscopic examination of the samples, specific infrared spectroscopy (FTIR) peak...