Gemnet British based Gem and jewellery Network, membership is 300 UK Pounds per year. http://www.gemnet.co.uk

Polygon The purpose of this site is to provide information and online services to the jewelry industry. http://www.polygon.net/

DiamondFloor.com A B2B ecommerce exchange floor for the professional certified diamond trade and jewelry industry. http://www.diamondfloor.com/

BOCI Trade Association Represents nearly 200 manufacturers divided into six groups: fashion jewelry, precious metal jewelry, silversmiths, pewterware, decorative gifts and objects, art craft industries. http://www.boci.org/index_us.html

Manufacturing Jewelers & Suppliers of America MJSA is a national jewelry trade association working to provide long-term stability and prosperity for jewelry manufacturers and their suppliers. http://mjsa.polygon.net

Jnet.com A comprehensive business-to-business Web site for the entire jewelry manufacturing industry. http://www.jnet.com

The Jewelry Dealers Network A members only trade and informational network for all aspects of the jewelry trade. http://www.jewelrydealersnetwork.com/

Worldwide Jewelers Network Web based jewelers trade network. Includes membership information, trade events, and publications. http://www.wjnet.com

Antique & Period Jewelry and Gemstone Conference Focuses primarily on jewelry of the 18th through 20th centuries. July 20-25, 2002, in Garden City, New York, USA. http://www.jewelrycamp.org/