SSEF Swiss Gemmological Institute An independent, international, non-profit organisation dedicated to the identification, treatment, and origin. Services, education, and contact information. Located in Switzerland. http://www.ssef.ch/ Ssef.ch~Site InfoWhoisTrace RouteRBL Check
Russian Gemological Server Offers gemstone analysis software, gemological education, and gemological laboratory services. Includes articles on diamond cut studies and a gallery of virtual diamond images. http://www.gemology.ru/ Gemology.ru~Site InfoWhoisTrace RouteRBL Check
GemResearch Swisslab Determination of the authenticity and country of origin of a rubies and sapphires. Offers gemstone reports and inscriptions. http://www.gemresearch.ch Gemresearch.ch~Site InfoWhoisTrace RouteRBL Check