USA

American Gem Society:
8881 W.Sahara Avenue
Las Vegas ,NV 89117
Tel:702.255.6500
Fax:702.255.7420
Website: http://www.ags.org/

Accredited Gemologists Association:
Contact-Executive Administrator at 619-501-5444
Website: http://www.accreditedgemologists.org/

International Colored Gemstone Association:
19 West 21st Street, Suite 705
New York, N.Y. 10010-6805
U.S.A.
Tel: 212-620-0900
Fax: 212-352-9054
Website: http://www.gemstone.org/

American Gem Trade Association(AGTA):
3030 LBJ Freeway, Suite #840
Dallas, Texas 75234
Phone: 214-742-4367
Fax: 214-742-7334
Website: http://www.agta.org/

Jewelers of America:
52 Vanderbilt Ave
19th Floor
New York, NY 10017
Tel:(800) 223-0673
Website: http://www.jewelers.org:8080/

World Diamond Council:
International Headquarters:
52 Vanderbilt Avenue / 19th Floor
New York, NY 10017 / USA
Website: http://www.worlddiamondcouncil.com/

Gemological Institute of America:
5345 Armada Drive
Carlsbad, California 92008
800-421-7250
760-603-4000
Fax 760-603-4003
Website: http://www.gia.edu/

The Association of America's Leading Diamond Manufacturers and Importers:
630 Fifth Avenue
Room 2406
New York, NY 10111
Telephone: (212) 245-3160
Toll-Free (800) 223-2244
Website: http://www.dmia.net/

Cultured Pearl Association of America (CPAA):
445 West 23rd Street
Suite 17E
New York, NY 10011
Phone: +1 212 255 6875
Fax: +1 212 255 6875

National Association of Jewelry Appraisers:
Gail Brett Levine, GG
Executive Director
P. O. Box 18
Rego Park, NY 11374-0018
718.896.1536
fax 718.997.9057
Website: http://www.najaappraisers.com/

The Jewelers Board of Trade:
Corporate Headquarters
95 Jefferson Boulevard
Warwick, RI 02888-1046
Tel. 401-467-0055
Fax No. 401-467-1199
Website: http://www.jewelersboard.com/splash3.htm

Indian Diamond & Colorstone Association:
22 West, 48th. Street, Room 606
NEW YORK , USA
POSTAL CODE: NY 10036
TELEPHONE NO. 212 921 4488
FAX NO:212 768 7935

Pearl District Business Association:
PO Box 4325
Portland, OR 97208
Marketing/Advertising Inquiries
Monica Spoelstra Metz
(503) 227-8519
Website: http://www.shopthepearl.com/

Gem and Mineral Council:
The Natural History Museum,los Angeles
General Information :(213) 763-DINO (3466)
Website: http://www.nhm.org/

International Gem Association:
Website: http://www.gemsociety.org/

South America:

Brazil:

IBGM - Brazilian Gems & Jewellery Trade Association:
SCN Centro Empresarial Liberty Mall Bloco A,
Conjunto 1105 CEP: 70.712-903 - Brasília DF
Tel:+55 (61) 3326-3926
Fax: +55 (61) 3328-6721
Website: http://www.ibgm.com.br/

Canada:

Canadian Gemmological Association:
1767 Avenue Road
Toronto, Ontario M5M 3Y8
CANADA
Telephone::1-416-785-0962
Fax:1-416-785-9043
Website: http://www.canadiangemmological.com/

Canadian Diamond Drilling Association:
306 - 222 McIntyre Street, W North Bay, Ontario, P1B 2Y8
Canada
Tel: +1 705 476 6992
Fax: +1 705 476 9494
Website: http://www.canadiandrilling.com/

Mid-Pro Rock & Gem Society:
c/o Prince Albert Arts Centre
1010 Central Ave.
Prince Albert, SK
S6V 4V5
Herve Vallee, President
Tel: (306) 764-1049
Website: http://www.canadianrockhound.ca/clubs/sk_mprgs

Canadian Jewellers Association:
27 Queen St. E., Suite 600
Toronto, Ontario
M5C 2M6
Tel: 416-368-7616
Fax: 416-368-1986
Website: http://www.canadianjewellers.com/