Worldwide Jewelers Network
Web based jewelers trade network. Includes membership information, trade events, and publications.
Jnet.com
A comprehensive business-to-business Web site for the entire jewelry manufacturing industry.
DiamondFloor.com
A B2B ecommerce exchange floor for the professional certified diamond trade and jewelry industry.
Polygon
The purpose of this site is to provide information and online services to the jewelry industry.
Gemnet
British based Gem and jewellery Network, membership is 300 UK Pounds per year.