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International Organizations
and Gem Trade Laboratories

 

ADGL - Australian Diamond Grading Laboratory
www.adgl.com.au

AGL - American Gemological Laboratories
www.aglgemlab.com

AGS - America Gemological Society
www.americangemsociety.org

AGSL - American Gem Society Laboratories
www.agslab.com

AGTA - American Gem Trade Association
www.agta.org

AIGS - Asian Institute of Gemological Sciences
www.aigsthailand.com

AWDC - Antwerp World Diamond Centre
www.awdc.be

BG - Gemmological Institute (BGGI), Beijing P.R. China
www.bggi.org

BGI - British Gemmological Institute
www.bgiuk.com

BJA - The British Jewellers' Association
www.bja.org.uk

CGL - Central Gem Laboratory, Japan
www.cgl.co.jp

CIBJO - The World Jewellery Confederation
www.cibjo.org

CISGEM - Centre for Information and Services in Gemmology
www.cisgem.it

DCLA - Diamond Certification Laboratory of Australia
www.dcla.com.au

DEL - German Diamond & Gemstone Laboratories Idar-Oberstein
www.gemcertificate.com

DGC - The Dubai Gem Club
www.dgc.ae

DGemG - German Gemmological Association
www.dgemg.com

EGL - European Gemological Laboratory
www.egl.co.za

EGL-USA - European Gemological Laboratory USA
www.eglusa.com

GAAJ - Gemmological Association of All Japan Co., Ltd.
www.gaaj-zenhokyo.co.jp

Gem Scan International - Canada
www.gemscan.com

Gem-A - The Gemmological Association of Great Britain
www.gem-a.info

GIA - Gemological Institute of America World Headquarters
www.gia.edu

GII - Gemmological Institute of India
www.giionline.com

GIT - Gem & Jewellery Institute of Thailand
www.git.or.th

Gubelin Gem Lab Ltd.
www.gubelinlab.com

HKJMA - Hong Kong Jewelry Manufacturers' Association
www.jewelry.org.hk

HRD Antwerp - Institute of Gemmology
www.hrdantwerp.be

IBGM - Brazilian Gems and Jewellery Trade Association
www.ibgm.com.br

ICA - International Colored Gemstone Association
www.gemstone.org

IDC - International Diamond Council
www.internationaldiamondcouncil.org

IDL - International Diamond Laboratories
www.diamondlab.org

IDMA - International Diamond Manufacturers Association
www.idma.net

IGE - Instituto Gemologico Espanol
www.ige.org

IGI - International Gemological Institute
www.igiworldwide.com

Langerman Diamonds
www.langerman-diamonds.com

LFG - Laboratoire Français de Gemmologie
www.diamants.ccip.fr

NAG - The National Association of Goldsmiths
www.jewellers-online.org

NCDIA - Natural Color Diamond Association
www.ncdia.com

NEL - Nederlands Edelsteen Laboratorium
www.science.naturalis.nl/nel

O.GEM.G - Österreichische Gemmologische Gesellschaft
www.gemmologie.at

PGS - Professional Gem Science Inc.
www.progem.com

RAPAPORT
www.rapnet.com

SGL - Solitaire Gemmological Laboratories
www.solitaire-labs.com

SSEF - Swiss Gemmological Institute
www.ssef.ch

WDC - World Diamond Council
www.worlddiamondcouncil.com

WGI - The World Gemological Institute
www.worldgemology.org

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