Rough and Ready Gems, Inc.
- Cutters of faceted gemstone briolettes in matched and single pieces. Available in over 50 natural gem materials, setting tips and techniques, description and history of briolettes.
- http://www.roughnready.com/

The Lapigems Gem Company
- Tanzanite, Tsavorite, Malaia garnet and East African loose gem stones.
- http://www.lapigems.com

Gemfix
- Faceted colored gemstones, from the cutters in San Diego.
- http://www.gemfix.com/

Faceted Gem Stones
- Presents an alphabetical list of stones from Russia and Eastern Europe.
- http://web.quick.cz/fgs/fgs/

Desert Moissanite
- Lab-created moissanite gemstones which are substitutes for diamonds.
- http://www.desertmoissanite.com

American Custom Cut Gemstones
- Faceted precious and semi-precious gemstones.
- http://www.loosefacetedgems.com

J.R.Parry & Co.
- Providing colored gemstone.
- http://www.jrparry.com/

Pentagon Gem Cutters
- Provides repair, polish, cutting, rough and sales of colored gemstones.
- http://www.pentagongem.com

Sapphire Gems
- Untreated, untreated blue and yellow sapphire gemstones.
- http://www.sapphires.ca/

Precious Pebbles
- Faceted gemstone suppliers with an emphasis on Oregon sunstone.
- http://www.precious-pebbles.com

Sri Lanka Gems, U.S.A.
- Offering tanzinite from Africa, emeralds from Columbia, green and pink tourmaline from Brazil.
- http://gonow.to/srilankagemsusa.com/

White's Fine Gems
- Offering custom-cut natural gemstones for jewelry or for the collector. Also offering custom gem cutting services.
- http://www.whitesgems.com/

Geolite
- Natural gemstones. Loose faceted cut colored gems for jewelry. Aquamarines, morganite, rhodolite garnets, amethysts, citrines, blue topaz, tourmalines, apatite, and other gemstones. Also cats eyes.
- http://www.geolite.com/natural.htm

Sapphire-Untreated.com
- Yogo sapphires from the Yogo Gulch, Montana, U.S.A.
- http://www.sapphire-untreated.com/

Archaeological Discovery Ventures Inc.
- Emeralds and gold recovered from a shipwreck.
- http://www.adventures-inc.com/

Custom Cut Gems
- Custom cut gems for jewelers, designers, and collectors.
- http://www.ccgem.com

Gem Depot
- Semi-precious and precious gemstones.
- http://www.gemdepot.com/

B and B Fine Gems
- Specializing in select loose gemstones, also offering semi-mounted and fully mounted jewelry.
- http://www.bandbfinegems.com/

The Brazilian Connection
- All types and sizes of colored gemstones, as well as finished designs.
- http://www.thebrazilianconnection.com/

Art-Sa
- Large selection of semi-precious and precious gemstones, by African designers.
- http://www.art-sa.co.za

The Dorado Company
- Faceted semi-precious and precious gems available.
- http://www.azgem.com/