Laboratories - Musharof Chy
New England Gemological Laboratory and Appraisal Services, LLC
Fine jewelry appraisals by an independent team. Services, price list, and location map. In Manchest...
SSEF Swiss Gemmological Institute
An independent, international, non-profit organisation dedicated to the identification, treatment, ...
American Gem Society Laboratories
Provides diamond grading services featuring grading of the diamond cut.
Russian Gemological Server
Offers gemstone analysis software, gemological education, and gemological laboratory services. Incl...
EGL USA Gemological Laboratory
Providing analysis, reports, and supporting services for diamonds, colored diamonds, colored gemsto...
GemResearch Swisslab
Determination of the authenticity and country of origin of a rubies and sapphires. Offers gemstone ...
Gemmological Association of Great Britain
Offers gem grading and identification services and courses for the trade and members.
Gubelin Gemmological Laboratories
Independent service provides general information on gemstones, ongoing research and lab report serv...