PehnecGems
Specializing in Cubic Zirconia and other lab created gemstones.
http://www.pehnec.com/

Simply Sapphires
Offering a variety of precious gemstones.
http://www.simplysapphires.com/

Pioneer Gem Corp.
Featuring loose, unset gemstones with mounting services available.
http://www.pioneergem.com/

Ozark Rock Exchange
Selling crystals, mineral specimans, and prayer pouches. Features a free ezine about the geology and history of gemstones.
http://www.ozarkrockexchange.com/

AJS Gems
Importer and exporter of rough and polished gemstones for the gem industry, gem cutters, jewelers, lapidaries and collectors.
http://www.ajsgems.com/

Jyotish Gem
Features pearl, coral, ruby, emerald, diamond, unheated blue and yellow sapphires imported by Jyotish gem expert Bill Kent, graduate gemologist.
http://www.jyotishgem.com/

The Gemcutter
Loose and rare faceted and cabochon gemstones, colored stone and diamond jewelry.
http://www.thegemcutter.com/

Buena Vista Gem Works
Gemstones and minerals for jewelers and collectors, rockhunting information.
http://www.buenavistagemworks.com/

Gemstone World
Fine facet rough and cut gemstones from around the world. Collector's gems,free Gem and Lapidary newsletter.
http://gemstoneworld.com

Harmon's
Montana agate rough, slabs, cabochons and jewelry.
http://www.harmons.net/

Gemcal
Supplier of sapphires and spinel directly from Thailand.
http://www.gemcal.com/

SweetGemStones.com
Presents cabochons and facets including drusy, blue opal, tourmaline, carvings, rainbow moonstone, agates, jaspers, sapphires, rhodolite, pyrite, rough drusy, chrysoprase, and custom cutting.
http://www.sweetgemstones.com

Origem
Presents unique gemstone carvings in opal, amethyst, tourmaline, ametrine, and citrine from a South Australian workshop.
http://www.origem.com.au/

John Miller's Gemology and Lapidary Pages
A gem dealer with a comprehensive introduction to gemology and the lapidary arts. Includes a dictionary of gemstones.
http://www.tradeshop.com/gems/index.html

Royal Gems
Precious and semi-precious gemstones.
http://royalgems.com

Rodrigue and Son
Ceylon sapphire, Burma ruby, Colombian emerald gemstones.
http://awesomegems.com/

Facet Shoppe
Rough and cut gems, gemstone optics, faceting information for beginners, computer faceting programs, Facetor's Digest.
http://www.gemcutter.com/

Owl Gemstones
Faceted and cabochon gemstones, descriptions, pricing factors and certified gemstones.
http://www.owlservices.com/

Gemcarver
Selection of sunstones, opals and other gemstones by award winning cutter William Cox.
http://www.gemcarver.com/

Bohemia
UK based shop selling amethyst and quartz crystals, silver and gemstone jewelry; most crystals not available outside the UK.
http://www.bohemians.co.uk/

Rockshop
Minerals, fossils, jewelry, meteorites for sale to dealers, collectors and jewelry makers. Handmade jewelry from crystals, tektites and meteorites.
http://www.rockshop.cz/

Hans-Dieter Haag
The world of fine cut faceted and cabochon gemstones.
http://www.hdhaag.de/

Gemcolor
Supplies gems for private purchase and jewelry designers. Diamonds, ruby, sapphires, emeralds and tanzanite.
http://www.gemcolor.com/

Steve Walters
Contemporary gemstone carvings for jewelry designers.
http://www.stevewalters.com/

Gems Stop
Cut Tanzanites as well as a list of links relating to gem, minerology and rockhounding sites.
http://www.angelfire.com/tn/tanzanites/index.html

Galarneau's Gems
Custom faceted gemstones and unusual cabochons plus 14k and sterling silver jewelry, bead and pearl necklaces.
http://www.galarneausgems.com/

Lyssa Gem
Offering faceted and cabochon gemstones such as garnets, aquamarine, lapis lazuli, amethysts, tourmaline and topaz.
http://www.lyssagem.com/

Great South Gems and Minerals, Inc.
Collectible rocks, minerals, semi-precious gems, fossils, crystals, tools, carved soapstone and minerals for collectors, hobbyist's and jewelers.
http://www.greatsouth.net/

MystiCrystals
Specializes in faceted gemstones and jewelry as well as facet rough, gem trees, and custom faceting.
http://mysticrystals.com/

TowerCrystals.com
Offering wirewrapped jewelry, crystals and mineral specimens, moldavite-tektites, and meteorites.
http://www.towercrystals.com/

Gram Faceting
Gemstone rough and faceted gemstones. All about the art of faceting (cutting) gemstones and how to learn to facet, faceting designs.
http://www.faceters.com/

Swiss Gem Shop
Offering Australian opals, alexandrites, sapphires, ruby and emeralds. Includes synthetic lab gemstone and related information.
http://www.swissgemshop.ch

Select Gems Limited
African roughcut gemstones featuring emeralds, rubies, sapphires, and semi-precious stones are featured.
http://www.selectgemslimited.com/

Rocks 9
Source for gemstones, jewelry, and rough cutting material, including rare chrysocolla and azurite.
http://www.angelfire.com/az2/gemsandminerals/

Skye's Gems
Presents exotic and rare gems and minerals from around the world. Specializing in opalized fluorite and Australian.
http://www.skyesgems.com/

Ritchard's Gems
Discount supplier of hand select facet rough from around the world including black Australian opals, Mexican fire and crystal opals and Honduras black matrix opal.
http://ritchardsgems.tripod.com/

Modern Stone Age
Hand cut faceted, cabochon and designer gemstones.
http://www.modernstoneage.8k.com/

Gallery of Gemstones
Featuring a wide variety of gem rough, loose gemstones, and finished fine jewelry.
http://gemmologist.tripod.com/

Gem Country USA
Offers a wide variety of cut gemstones both faceted and cabochons.
http://www.gemcountryusa.com/

GemSuite.com
Retails most gemstone varieties. Also includes general information about the gemstones.
http://www.gemsuite.com

CN Thai and Sons Company Limited
Offers precious stones including sapphire and ruby, as well as jewelry.
http://www.cngems.com

W Scott Forrest Gemstones
Fine colored gemstones including benitoite, tanzanite, tsavorite and many other rare and unusual loose gems and jewelry pieces.
http://www.wsfgems.com

Apsara Gems
UK company offering rubies and sapphires.
http://www.apsara.co.uk

Glyptic Illusions
Selling an assortment of gemstone carvings.
http://www.glypticillusions.com

SWD Import Export Co.,Ltd.
Offering precious and semi-precious gemstones, available in a variety of shapes. Located in Thailand.
http://www.swdgems.com

Darbellay Company
Offering wide range of gemstones with online purchasing.
http://www.gggems.com

GemSource
Located in the UK, offering lapidary packs. Includes information on gemstones.
http://www.gemsource.co.uk/

National Gemstone
A full service diamond and precious gemstone brokerage firm marketing GIA diamonds and AGL colored gemstones to collectors and investors.
http://www.preciousgemstones.com

Sta Lanka ROP
Offering a variety of loose gemstones, as well as some set jewelry designs. Located in Thailand.
http://www.starlanka.com

Crystal Vine
Offers sales of minerals, stone carvings, and gems. Features catalog and auction information.
http://www.crystalvine.co.uk/

M and M Gems
Manufacturers and exporters of colored gemstones. Calibrated emeralds is a speciality.
http://www.mmgems.com/

Hassam Ventures
Suppliers of rough cut Nigerian gemstones.
http://www.hassamventures.com

Jackson's Gems
Rough gemstones and lapidary supplies.
http://www.facetrough.com/

R. Schultz Gems
Brazilian loose colored gemstones and custom jewelry.
http://www.rschultzgems.com

The Pink Emerald Company
Specializing in colored emeralds and gemstones, as well as objets d' art.
http://www.pinkemerald.com

Allied Rough & Cut Gems
Australia based supplier of facet rough and loose faceted gemstones. Origin of gemstones is mainly Afghanistan, Pakistan, Thailand and Burma.
http://www.arcgems.com

Gems of East Africa
Gemstones from East Africa, Arusha, and Tanzaniza. Rough and faceted stones.
http://www.gemsofeastafrica.com

Aurora Ammolite Mine
Ammolite gems, jewelry, specimens and fossils.
http://ammolitemine.com

Muzo Mine Emerald Company
Loose gem stones, jewelry, pearls and beads.
http://www.muzomineemerald.com/

Mani Ratnam
Wide variety of precious and semi precious gemstones and beads. Located in India.
http://www.gemandgemstone.com/

Discounted Gems
Amethyst, garnet, ruby, sapphire, topaz, tourmaline, and other gemstones.
http://www.discountedgems.com

Pretty Rock Productions
Rough and faceted gemstones, gemology tools and custom jewelry.
http://www.prettyrock.com

The Natural Sapphire Company
Offers a range of loose sapphires, jewelry and educational information.
http://www.thenaturalsapphirecompany.com

All That Glitters
Features a wide range of gemstones, crystals, and some jewelry.
http://www.atggems.com/

Yarrul Gems International
Offering Australian opals and Canadian ammolites, with illustrated catalogue and order tracking.
http://www.yarrulgems.com/

S and S Gems and Jewelry
Offers diamonds, cabochons, and faceted gems, with photographs and specifications of each item.
http://store.gemsevermore.com

D and J Rare Gems Ltd
Supplying gems to collectors, with newsletter, photographs, and background details.
http://djraregems.com/

Kameyab Imports, Inc.
Offering semi-precious gems, beads and cabochons.
http://kibeads.com