INSTITUTES

American Gemological laboratory

GIA

Gemological Institute of America

www.gia.edu

HRD Antwerp

Hoge Raad Voor Diamant

www.hrdantwerp.com

IGI

International Gemological Institute

www.igi.org

AGS

American Gem Society

www.americangemsociety.org

EGL(USA)

European Gemological Laboratories

www.eglusa.com

GRS

GRS GemResearch Swisslab

gemresearch.ch

EGL(HK)

European Gemological Laboratories

www.eglhk.com.hk

AIGS

Asian Institute of Gemological Sciences

www.aigsthailand.com

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REPORT CHECK

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