- 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.
- DiamondFloor.com - A B2B ecommerce exchange floor for the professional certified diamond trade and jewelry industry.
- Gemnet - British based Gem and jewellery Network, membership is 300 UK Pounds per year.
- Polygon - E-marketplace enables its members to buy and sell diamonds, jewelry, colored stones and watches.
