- Australia

Diamond Certification Laboratory of Australia (DCLA)
Suite 1, Level 1
Piccadilly Tower
133 Castlereagh Street
Sidney, 2000
Australia
Phone: + 61 2 9261 2104
Fax: + 61 2 9261 4263
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- Austria

Österreichische Gemmologische Gesellschaft (ÖGEMG)
Mailing address : Seat address :
Lammgasse 7 Goldschlagstrasse 10
A-1080 Vienna A-1150 Vienna
Phone: + 43 1 406 08 42
Phone : + 43 676 301 40 66
Fax : + 43 1 402 06 99 
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- Brazil

Instituto Brasileiro de Gemas e Metais Preciosos (IBGM)
Rede IBGM de Laboratórios Gemológicos
Rua Teixeira da Silva, 433
São Paulo - SP - 04002-031
Phone: +55 11 3016 5850
Fax: +55 11 3284 0459
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- China

BG Gemological Institute
China Arts Building
103 Jixiangli
Chaoyangmenwai street
Beijing
China
Phone: + 86 10 655 12259 / 65 122221
Fax: + 86 10 655 20267/6513 8659
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- France

Laboratoire Français de Gemmologie de la C.C .I.P.
2, place de la Bourse
75002 Paris
France
Phone : +33 1 40 26 25 45
Fax : +33 1 40 26 06 75
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- Germany

DDI Deutsches Diamant Institut (Diamonds)
Poststrasse 1
D-75172 Pforzheim
Phone: + 49 7231 14 55 555
Fax : + 49 7231 140 878
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Deutsches Edelstein Tesinstitut
Mainzer Strasse 34
Diamant und Edelsteinbörse 
D-95743 Idar-Oberstein
Phone: + 49 6781 944 240
Fax: + 49 6781 944 266
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- Hong Kong

Hong Kong Jade & Stone Laboratory Ltd
Flat A, 12/F
Kaiser Estate Phase I
41 Man Yue Street
Hunghom, Kowloon
Hong Kong
Phone: + 852 2543 0543
Fax : + 852 2815 0164
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16/F Hang Lung House
184-192 Queen's Road
Central
Hong Kong
Phone: + 852 2545 0817
Fax: + 852 2543 0713
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- India

Gemmological Institute of India
29 Gurukul Chambers
187-189 Mumbadevi Road
Bombay 400 002
Phone: + 91 22 2342 00 39
Fax: + 91 22 2341 37 89
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