Marquise Gems Pvt Ltd
- Manufacturers, exporters and suppliers of gold, diamond platinum, silver and gemstone jewellery. Also exports loose diamonds and gemstones.
- http://www.diamond-ocean.com

Scintilla Monaco
- Featuring original pieces and collections, with photographs and distributor details.
- http://www.scintilla.com/

Polar Bear Diamond
- Manufacturer of diamonds that are mined, cut and polished in Canada.
- http://www.polarbeardiamond.com/

Primak Jewelry
- Offering certified collections to the trade, includes product and dealer information.
- http://www.primakjewelry.com/

Charles & Colvard Ltd
- Develops colorless, lab-created moissanite gemstones which are substitutes for diamonds. (Nasdaq: CTHR).
- http://www.moissanite.com/

Leo Schachter Diamonds LLC
- Provides a guide to buying diamonds that addresses cut, clarity, color and carat as well as branded and unbranded diamonds. Site highlights the difference between Leo Diamonds and unbranded diamonds.
- http://www.theleodiamond.com/

Canada Diamonds
- Diamond brokers offer wholesale Canadian diamonds and platinum jewelry.
- http://www.canadadiamonds.com/

Apollo Diamond
- Produces single crystal diamond wafers and crystals for the optoelectronics, nanotechnology, and consumer gem markets. Includes information on synthetic production capabilities, with links to patent and related articles.
- http://www.apollodiamond.com/

Elsa
- Manufactures custom wedding and engagement rings. Does business with retailers as well as the general public
- http://www.elsarings.com/

Bapalal & Co. Jewellers.
- Indian manufacturer of gold and diamond set jewellery.
- http://www.bapalaljewellers.com/

Antwerp Blanka Diamonds
- Manufacturer of small brilliants with factories in Antwerp and Sri Lanka.
- http://www.blankadiamonds.be

Spence Diamonds
- Chain of canadian diamond and jewelry retail stores.
- http://www.spencediamonds.com/

Goodfine Diamond Corp.
- New York manufacturer of fine diamonds.
- http://www.goodfinediamond.com/

The Diamond Broker
- In business since 1979, an extension of two diamond cutting facilities one located in Lisbon, Portugal, and the other domestically in the United States. (Los Altos, California)
- http://www.diamondbroker.com/

Amstel
- One of the oldest diamond factories of Amsterdam, has been producing gems since 1876. (Denmark)
- http://www.amsteldiamonds.nl/