Australia

The Gemmological Association of Australia:
(New South Wales Division Inc)
Gemmology House
24 Wentworth Avenue
Sydney NSW
2010
Telephone: 61 2 9264 5078 (Int)
(02) 9264 5078 (Aus)
Fax: (02) 9283 5629
Website: http://www.gem.org.au/

Australian Opal and Gem Industry Association Limited:
A.C.N. 001 117 237
Suite 309, Grand United Building, 149 Castlereagh Street, Sydney 2000, Australia
Phone: + 61 2 9267 1310
Fax: + 61 2 9267 1037
Website: http://aogia.polygon.net/

Opal Association:
P.O. Box Opal, Ramsgate, 2217
Phone: President:02 9879 4197
Website: http://www.opal.asn.au/

Africa:

CIBJO:

The World Jewellery Confederation
Piazzale Giulio Cesare
Palazzo Africa
20145 Milano - Italy
Phone: +39 02 4997 7098 / 7097
Fax: +39 02 4997 7059
Website: http://www.cibjo.org/

The Jewelry Council Of South Africa:
Suite 102
SA Diamond Centre
Cnr Phillip and Main Street
Johannesburg
2001
Telephone: +27 11 334 1930
Fax: +27 11 334 1933
Website: http://www.jewellery.org.za/