Gemological Institute of America
Established in 1931, GIA is the world’s largest and most respected nonprofit institute of gemological research and learning.

American Gem Society
The AGS was established in 1934 with a vision to create an association of fine jewelry retailers dedicated to setting and maintaining the highest possible standards of business ethics and professionalism in the jewelry industry.

European Gemological Laboratory
EGL USA is one of the world's premier independent gemological laboratories.  For over 25 years it has offered the fine jewelry trade and consumers accurate, reliable gemstone identification and professional certification to validate their gemstone purchases.

GemScan
Gem Scan is an independent jewellery appraisal laboratory providing gem identification and appraisal services to the jewellery trade and public. 

International Gemological Institute
The IGI is the largest independent gem grading and appraisal institute in the world, renowned for their expertise and extensive experience in serving the diamond and jewelry industry for over 25 years.

 

 

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