- American Diamond Wholesalers - Family owned business selling loose diamonds, all accompanied with GIA certificates.
- Diamond Importers - GIA Certified and inscribed diamonds.
- Diamond Trade - Specializing in loose GIA certified diamonds.
- Eternal Diamond - Eternal diamonds are a unique brand certified by professional international laboratories.
- Five Star Diamonds - Offers GIA certified diamonds in Virginia, Maryland, and Washington D.C. Featured discussion on ideal cut.
- Florida Jewelry Appraisers - Provides GIA reports, garding details, and catalog of colored diamonds for sale.
- GotRox - Loose diamonds, search by shape, size, quality, also information about selecting diamonds.
- Hardcarbon - Offering GIA, AGS, and EGL certified diamonds directly from DeBeers sight holders.
- I Do Diamonds - Searchable inventory of loose stones. Includes glossary and buying guide. Prices listed in Canadian dollars.
- Israel Diamonds - Offering loose precious and semi-precious stones as well as custom rings, earrings, and pendants. Includes buying guides and a newsletter.
- J Edwards Diamond Financing - Dealer of loose diamonds and jewelry. Offers information and a financing program.
- J.Robin Gems - Supplier of loose and mounted diamonds. All stones GIA certified and guaranteed.
- Kassab Jewelers - Direct diamond broker, providing certified loose diamonds and designer lines.
- Loose Diamond Mart - Specializing in GIA and EGL certified loose diamonds only, no jewelry. Offering I color and above, SI2 clarity and higher.
- Lumera Diamonds - GIA Certified Diamonds offered with a written appraisal, trade-in privileges, and 30-day returns. Extensive diamond education and buying guide.
- Maloof Jewelry and Gifts - Loose diamonds and certified diamonds set in gold, platinum or silver jewelry
- Melbourne Diamond Exchange Ltd - An international exchange for web users to procure certified diamonds.
- New York Diamond Exchange - 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.
- NovaDiamond - Natural diamond color-restored by high pressure and temperature.
- Opportunity Diamonds - Offering AGS, GIA, EGL certified diamonds as well as rings. Also offering colored diamonds. red Diamonds.
- Solomon Brothers - Search for loose diamonds by cut, color, clarity, carat weight or price.
- Steve Padis Jewelry - Online jewelry catalog includes diamonds, diamond rings, wedding bands, diamond and gold earrings.
- The Diamond Company - Diamond import company in San Francisco offering certified diamonds to manufacturers, jewelers and private individuals.
- USA Certed Diamonds - Sells GIA and AGS certified diamonds.
