Sta Lanka ROP: Thai wholesaler offering loose gemstones. W Scott Forrest Gemstones: Fine colored gemstones including benitoite, tanzanite, tsavorite and many other rare and unusual loose gems and jewelry TowerCrystals.com: Offering wirewrapped jewelry, crystals and mineral specimens, moldavite-tektites, and meteorites. SweetGemStones.com: Presents cabochons and facets including drusy, blue opal, tourmaline, carvings, rainbow moonstone, agates, jaspers, sapphires, rhodolite, pyrite, rough drusy, chrysoprase, ... Swiss Gem Shop: Offers opals, alexandrites, sapphires, ruby, emeralds and other Australian gemstones. Steve Walters: Contemporary gemstone carvings for jewelry designers. Slabs and Cabs: Presents cabochons of unique materials from the firm's mines as well as custom cutting and slabbing. Skye's Gems: Presents exotic and rare gems and minerals from around the world. Specializing in opalized fluorite and Australian.