Diamond Trade
- http://www.diamondtrade.com/
- Specializing in loose GIA certified diamonds, also has inventory of earrings, pendants, wedding bands, engagement rings, tennis bracelets.
Israel Diamonds
- http://www.israel-diamonds.com/
- Offering loose precious and semi-precious stones as well as custom rings, earrings, and pendants. Includes buying guides and a newsletter.
New York Diamond Exchange
- http://www.nydex.com/
- Loose diamonds. Provides timely market prices on diamond sizes from .70 carat up to 2.49 carats, colors from D to J, and clarity grades from VS1 to S1.