Diamond Powder
Lieber & Solow: full line industrial diamond supplier; from gems, dressers and die stones to micronpowders. Manufacturer of superabrasives and DeBeers' sight holder for natural industrial diamonds.
http://www.landssuperabrasives.com/

Leo Schachter Diamonds LLC
Choosing the perfect diamond is a balance between learning about diamond characteristics and buying a diamond that will leave her breathless.
http://www.theleodiamond.com/

Sarin Technologies
Sarin - A worldwide leader in the development of measurement systems for Diamond Cut Grading & Gemology Tools, rough diamond optimization systems, diamond color grading, and laser marking machines
http://www.sarin.com

I.G.A.T. Diamonds
Israeli manufacturer of loose diamonds. Features Phoenix diamonds.
http://www.igatdiamonds.com

Josef Herskovits and Co.
Specialized in fancy diamonds. Manufacturing fancy shape diamonds and natural fancy color diamonds since 1947.
http://www.fancy-diam.com/

Diamonds Interamerica
Specializing in loose diamonds, old European cuts and estate jewels.
http://www.diamondsinteramerica.com/

Canada Diamonds
Wholesale Canadian Diamonds - finest quality ideal cut Canadian diamonds at incredible wholesale diamond prices. Ethically mined Canadian diamonds with a certificate of authenticity, a independent lab grading diamond certificate from the GIA, AGS, or Gemscan grading report of the Canadian diamond.
http://www.canadadiamonds.com/

Custodiam
Produces customized industrial diamonds and black diamonds and diamond pearls for jewelry. Belgium.
http://www.custodiam.com/

Texcape Diamonds Inc.
Direct Diamond Center is a specialist diamond firm able to supply fine diamonds at competitive prices with lab certificates. Call us today for diamond advice and help at (800)232-9446 or (972)980-7632, or email info@directdiamondcenter.com.
http://www.directdiamondcenter.com/

Penta Diamonds
Manufacturers and wholesalers of loose fancy shaped diamonds including marquise, oval, heart and pear shapes.
http://www.penta-diamonds.com