As a service we give on request the certificate of our in-house laboratory for every gemstone in our stock. Also it is possible to get the gemstone sealed with the gemsecure seal system with a mini certification, on demand even personalized on the backside with the name and logo of our customer.
For the higher range quality gemstones the certificate is done by independent gemological laboratories.
For any other certifications we suggest the following international recommended laboratories: United States of America: GIA Gemological Institute of America. Switzerland: Guebelin Gem Lab and SSEF Swiss Gemmological Institute. Germany: DEL Deutsche Diamant & Edelstein Laboratorien (Idar-Oberstein). Italy: IGI Istituto Gemmologico Italiano. France: Carat Gem Lab. Hong Kong: GRS Gem Research Swisslab.