 | Alpha, Inc. - Manufacturer of "A Cut Above" hearts and arrows ideal cut diamonds.
| EightStar Diamond Company - Manufacturer of Eightstar diamonds featured high optical symmetry.
| Ekati Diamonds - Explains origin and cutting process of the Canadian diamonds from Northwest Territories. Consumers can search for authorized retailers.
| Ernest Slotar, Inc. - Importing and contract manufacturing company, specializing in ideal cut and fancy shape diamonds. Sell to trade only
| I.G.A.T. Diamonds - Israeli manufacturer of loose diamonds. Features Phoenix diamonds.
| Lazare Diamond - Manufacturer of Lazar brand name ideal cut diamonds. Provides jeweler locator.
| Nu Age Products - Offers diamond coloring services. Located in New york and Tel Aviv.
| Penta Diamonds - Manufacturers and wholesalers of loose fancy shaped diamonds including marquise, oval, heart and pear shapes.
| Sarin Technologies - Manufactures tools for optimisation and grading of rough and polished diamonds.
| Schachter and Namdar Botswana - Diamond manufacturer in Botswana.
| Smolensk State Unitary Company Production Corporation - Diamond polishing company providing "Russian cut" or the "Russian make" stones between 0.01 and 7.00 carats in weight and include various colours and purities.
| Waldman Diamond Company, - Diamond manufacturer, buyers and sellers.
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