Amstel: One of the oldest diamond factories of Amsterdam, has been producing gems since 1876. (Denmark)
Antwerp Blanka Diamonds: Manufacturer of small brilliants with factories in Antwerp and Sri Lanka.
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.
Bapalal & Co. Jewellers.: Indian manufacturer of gold and diamond set jewellery.
Canada Diamonds: Diamond brokers offer wholesale Canadian diamonds and platinum jewelry.
Charles & Colvard Ltd: Develops colorless, lab-created moissanite gemstones which are substitutes for diamonds. (Nasdaq: CTHR).
Elsa: Manufactures custom wedding and engagement rings. Does business with retailers as well as the general public
Goodfine Diamond Corp.: New York manufacturer of fine diamonds.
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.
Polar Bear Diamond: Manufacturer of diamonds that are mined, cut and polished in Canada.
Primak Jewelry: Offering certified collections to the trade, includes product and dealer information.
River Diamonds & Jewels Co. Ltd: Indian manufacturer, trader, and exporter of cut and polished diamonds, gemstones and jewellery
Scintilla Monaco: Featuring original pieces and collections, with photographs and distributor details.
Spence Diamonds: Chain of canadian diamond and jewelry retail stores.
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)