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Gem Certification and Assurance Lab

I would like to see a real industry standard for diamond/gemstone grading for all labs in all c...

mapMarkerGrey 580 Fifth Avenue, New York, NY...

International Gemological Institute

I would like to see a real industry standard for diamond/gemstone grading for all labs in all c...

mapMarkerGrey 551 5th Avenue, New York, NY, ...

GHI Gemological Laboratory

THIS IS BEST PLACE TO JUDGE ALL THE LABORATORY .THE AGL LABORATORY IN BANGKOK IS DOING ALL WRON...

mapMarkerGrey 580 Fifth Avenue, Suite 2750 N...

American Gemological Laboratory (AGL)

I would like to see a real industry standard for diamond grading for all labs in all countries ...

mapMarkerGrey 580 5th Avenue Suite 706 New Y...

International Gemological Laboratory

I would like to see a real industry standard for diamond/gemstone grading for all labs in all c...

Diamond Council of America

I earned my Diamontologist diploma from the DCA. It has always helped me get hired in new jobs....

mapMarkerGrey 120 Broadway, Suite 2820 - New...