 | 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.
| Bapalal & Co. Jewellers. - Indian manufacturer of gold and diamond set jewellery.
| 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)
| 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.
| Oro - Italian manufacturers and distributor of diamond jewelry.
| River Diamonds & Jewels Co. Ltd - Indian manufacturer, trader, and exporter of cut and polished diamonds, gemstones and jewellery
| Sirius Diamonds Ltd. - Manufacturer of Canadian Polar Bear diamonds. Specializes in "Canadian Ideal" and "Canadian Fine Cut" diamonds.
| Spence Diamonds - Chain of canadian diamond and jewelry retail stores.
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