A. Akira Chikayama Gem Laboratory

1 - 36 - 16 Ogikubo, Suginami J Tokyo 167 , Tokyo , Japan
Telephone: 03 339- 2043
Fax: 03 3391-4876

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American Gem Society Laboratories

8881 West Sahara Avenue , Las Vegas , United States
Telephone: (702) 233-6120
Fax: (702) 233-6125

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Antwerp Diamond Labo

2018 Antwerpen, Pelikaanstraat 78, Antwerp Diamond Bourse, Offices 353-354 , Antwerp , Belgium
Telephone: 32 3 226 34 01
Fax: 32 3 239 48 89

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Asian Institute of Gemmological Sciences

919 / 1, Silom Road, Jewelry Trade Centre, South Tower, 11th Road , Bankok , Thailand
Telephone: 2674315/9
Fax: 2674320

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China National Gemstone Testing Centre

15, Yang Rou Hu Tong,XI SI , Beijing , China
Telephone: 0841-6168335

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Cibjo Institute of Japan

Tokyo - Bihokaikan 1 - 24, Akashi - Cho Chu-Ku , Tokyo , Japan

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Deustsches Edelstein Test Institute

Mainer Strasse 34, Post Fach 122 22 20, 6580 , Idar Oberstein , Germany
Telephone: 6781 41269

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Deutsches Diamand institute

Postrasse 1, Brd - 7530 , Pforzheim , Germany
Telephone: 7231 32 211
Fax: 7321 355 887

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EGL USA

30 West 47th Street , New York , United States
Telephone: 212-730-7380
Fax: 212-730-7453

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EGL USA

550 South Hill Street, Suite 40 , Los Angeles , United States
Telephone: 877-893-8593, 213-534-2223
Fax: 213-534-2224

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European Gemological Laboratory

30 West 47th Street Suite 205 , New York , United States
Telephone: (212) 730-7380
Fax: (212) 730-7453

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Far East Gemological Laboratory

19, Tanglin, Road No. B2 - 02, Tanglin Shopping Centre , Singapore , Singapore
Telephone: 7361273
Fax: 7320163

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Fergusson College

Department Of Geology, Fergusson College Road , Pune , India
Telephone: 354212

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Gem Testing Laboratory

4-3-346 Raja Bhagwandas Marg, Bank Street , Hyderabad , India
Telephone: 514797

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Gem Testing Laboratory

Kerala Mineral E & D Project Kesavdaspuram, Pottom Palace P. O. , Trivendrum , India
Telephone: 447429 / 447184

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