Gem Testing Laboratory

Rajasthan Chambers Bhavan, M.I. Road , Jaipur , India
Telephone: 568221
Fax: 321820

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Gem Testing Laboratory

27, J. N. Road , Calcutta , India
Telephone: 2476955 EXT. 52

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Gem Testing Laboratory

66, Cathedral Road , Chennai , India
Telephone: 8273146

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Gem Trade Laboratory

580 Fifth Avenue , New York , United States
Telephone: 212-221-5858
Fax: 212-575-3095

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Gemmological Association And Gem Testing Laboratory of Great Britain

27, Greville Street, London Ecin 8SU , London , United Kingdom
Telephone: 071-404-3334
Fax: 071-4048843

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Gemmological Association of All Japan

Katsumi Bldg 2F, 5 - 25 - B UENO Taito Ku , Tokyo , Japan
Telephone: 38335-2531
Fax: 03-3825-2479

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Gemmological Associaton of China (GAC)

15, Yangrou Hutong XISI , Beijing , China
Telephone: (010) 6015471
Fax: 86-10-168337

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Gemmological Institute Of India

29, Gurukul Chamber, 187-189, Mumbadevi Road , Mumbai , India
Telephone: 3420039 / 3413785

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German Gemmological Association

P. O. Box 12 22 60, D - 55714 , Idar Oberstein , Germany
Telephone: 49 6781 43011
Fax: 49 6781 41616

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Gia Gem Trade Laboratory Inc

1630, Stewart Street , Santa Monica , United State
Telephone: (310) 828-3148
Fax: (310) 829-1790

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Gia Thailand

2nd Floor, Oriental Gold Building, 116 Silom Road , Bangkok , Thailand
Telephone: 6622378188

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Gisgem

Via Brisa 5, 1 - 20 123 Milan , Milan , Germany
Telephone: 8515 5543

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Gubelin Gemmological Laboratory

Maihofstrasse 102, CH-6000 , Lucerne , Switzerland
Telephone: 41 429 1717
Fax: 41 429 1734

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Hong Kong Gems Laboratory The H. K. Institute of Gemmology

RM. 401, Blissful Building, 247 Des Voeux Road, Central Hong Kong , Hong Kong , China
Telephone: 2851 1880 / 2851 2705
Fax: (852) 28543970

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Independent Gemological Laboratories

6 East 45th Street , New York , United States
Telephone: (212)557-0111
Fax: (212)983-9698

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