It is a part of the Schweizerische Stiftung für Edelstein Forschung (SSEF, Swiss Foundation for Gemstone Research).
Hänni became professor of gemmology at Basel University, also a reward for his years of steady research and supply of publications.
The mandate of the SSEF is to analyse precious stones and jewellery; issuing test reports for coloured gemstones, diamonds and pearls.
[2] Its forte lies in the detection of gemstone authenticity, origin, and gem treatments on a scientific and reproducible basis.
It offers expert independent advice to a wide gemmological clientele including gem dealers, jewellers, auction houses and private customers in many countries.