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/
DiamondFloor.com A B2B ecommerce exchange floor for the professional certified diamond trade and jewelry industry. http://www.diamondfloor.com/
Gemnet British based Gem and jewellery Network, membership is 300 UK Pounds per year. http://www.gemnet.co.uk
The Jewelry Dealers Network A members only trade and informational network for all aspects of the jewelry trade. http://www.jewelrydealersnetwork.com/
Polygon The purpose of this site is to provide information and online services to the jewelry industry. http://www.polygon.net/