ADAMAS GEMOLOGICAL LABORATORY publishes gemologically oriented software for the jewelry appraiser, jeweler, or student in gemology or mineralogy. The laboratory also provides technical consulting and jewelry appraisal services to the trade and the public and expert witness services to the legal profession.

The SSEF Swiss Gemmological Institute is an independent, international, non-profit organisation dedicated to the identification of gemstones, gemstone treatments, origin determination, gemmological research and education.

This site features information about Mogok and other mining areas in Myanmar (Burma), Gem Treatments, and information dealing with rubies-sapphires.

Gubelin Gemmological Laboratory keeping our gemstone report with traditions high standards, independent opinion of the laboratory, constant inovation and up to date technologies make the Gubelin Gemmological Laboratory the world most reknowned gem laboratory.

ASSESSORIA GEMOLOGICA Walter M. Leite & Andre C. Leite Rua Visconde de Piraja, 540 - slj 210 22410-002 Rio de Janeiro - RJ - Brasil tel: (21) 239-4078 / (21) 540-8718 fax: (21) 274-8543 Ingles Homepage: MTR ******** Tivemos visitantes. ...