- Blue Nile
 - Education, guidance, and a large selection of certified loose diamonds, gemstones, jewellery, and watches. - Rothem Diamond Engagement Rings
- Safe online worldwide shop for diamond engagement rings, certified diamonds, diamond earrings, and fine jewellery.
- Diamonds on Web
- Offers certified loose diamonds and other diamond jewellery at wholesale prices.
- Diamond.com
- Offers certified loose diamonds, name-brand watches, and jewellery at wholesale prices. Diamond.com features shop by product such as engagement rings, necklaces, or bracelets, as well as shop by material such as diamond, pearl, or gold.
- Abazias.com
- Offering GIA certified loose diamonds and jewellery at wholesale prices.
- Diamonds USA
- Offers loose diamonds, and allows users to design their own engagement and anniversary rings, diamond stud earrings, and pendants using the jewellery matching engine
- LifeGem
- Man-made diamonds created partially with the carbon from the cremated ashes of your loved one.
- Diamond Safe
- Offers certified loose diamonds, engagement rings, necklaces, and diamond jewellery.
- Mondera.com
- Collection of fine diamonds and jewellery sourced from around the world. Mondera.com offers wedding and anniversary rings, loose diamonds, necklaces, bracelets, and earrings.
- Bestgem
- Offers certified diamonds, rings, and jewellery at wholesale prices.
- 1DiamondSource.com
- Offers loose diamonds and fine jewellery at wholesale prices.
- Danforth Diamond
- Offers diamond jewellery in silver, platinum, or gold including rings, engagement rings, earrings, necklaces, body jewellery, bracelets, and pendants.
- DY Jewels
- Gold and diamond jewellery including engagement rings, wedding bands, chains, tennis bracelets, stud earrings, omega necklaces, and loose diamonds.
- Diamonds.com
- Online diamond retailer, featuring diamond rings, bracelets, necklaces, earrings, loose diamonds, and more. Diamonds.com provides an education section, with information on the cut, colour, clarity, and carat-weight of a diamond.
- CanadaDiamonds.com
- Offers wholesale certified Canadian diamonds and jewellery.
- Whiteflash.com
- Specialises in expert-cut diamonds, engagement rings, wedding bands, and other diamond jewellery.
- Cool Diamonds
- Offers rings, earrings, necklaces, body jewellery, and loose stones.
- E Diamond Corporation
- Specialises in earrings, engagement and anniversary rings, pendants, and clarity enhanced diamonds.
- New York Diamond Exchange
- Offers information on wedding and engagement jewellery.
- YourDiamond.com
- Offers certified diamonds and jewellery.
- Jewellery Web Shop
- Selling to wholesalers, manufacturing jewellers, and the public.
- Diamond Cutters
- Specialises in loose certified diamonds.
- McGivern Diamonds
- Offers wholesale prices and an online diamond and ring catalogue. GIA, AGS, EGL, and IGI certified.
- Yehuda Diamond Company
- Offers loose diamonds and diamond jewellery at wholesale prices.
- Surat Diamond Jewelry
- Features fine diamond jewellery, engagement rings, wedding bands, precious stones, Tahitian pearls, and more.
- IceStore, Inc.
- Offers loose and natural fancy colour diamonds at wholesale prices.
- Buy Diamond Direct
- Offers diamonds, watches, necklaces, earrings, and more.
- VirtualJewelers.com
- Specialising in wedding bands, bridal sets, designer, and custom jewellery in karat gold and platinum.
- Diamondnet.com
- Offers GIA, AGS, and EGL certificated diamonds, loose or mounted.
- Jewelry by Jose Grant
- Manufacturer of puzzle rings in various styles. Also offers loose diamonds.
- James Allen Diamonds & Engagement Rings
- Online retailer of GIA and AGS certified ideal cut diamonds. Also features designer engagement ring settings and 3D movies for all diamond jewellery.
- Jewelryzone.com
- Diamonds from 1/4 carat to over 4 carats.
- idazzle.com
- Features information on choosing a diamond, personal diamond advisor, and local jewellery referrals.
- Solomon Brothers
- Search for diamond jewellery pieces by style or design. Gem guide details cut, carat weight, certification, clarity, and colour of stones.
- May Diamonds
- Offers users the opportunity to design their own diamond ring.
- Reflecting Concepts
- Specialises in loose diamonds and diamond engagement rings.
- Dirt Cheap Diamonds
- Includes a large database of loose diamonds and platinum engagement rings at discount prices.
- Diamond House
- Broker in Antwerp specialising in solitaires. Also in Dutch.
- Empire Diamond Corporation
- Features information on cut, quality, and sizing. All diamonds are certified by the Gemological Institute of America.
- Golda Jewelry
- Specialises in certified loose diamonds, diamond engagement rings and wedding bands, and other fine jewellery at wholesale prices.
- Becker's
- DeJoria Diamonds
- Stunning certified and conflict-free diamonds from DeJoria. Features a range of diamond engagement ring and wedding band designs.
- Original Diamonds
- Offers certified loose and coloured diamonds, engagement rings, Hearts & Arrows Ideal Cut diamonds, and more.
- 1Diamond.com
- Includes certified wholesale loose diamonds through a searchable database. Also offers designer engagement rings and consultations with gemologists.
- Diamond Distributors of America
- Offers diamond earrings, wedding rings, tennis bracelets, and more.
- SuperbCert
- Diamond cutting, polishing, faceting, and custom inscribing.
- AURIAS
- Offers a variety of diamonds searchable by carat weight and dollar amount.
- International Wholesale Diamonds, Inc.
- Auctions, education, information, solitaire rings guaranteed.
- 4Diamondstuds.com
- Sells earrings at discount prices.
- Spence Diamonds
- Specialises in diamond jewellery. Locations across Canada and in Minnesota.
- Treasures by R.J.
- Wholesale diamonds and custom creations.
- Ice Cool
- Sophisticated diamond jewellery in both yellow and white gold with a special range for teenagers.
- American Diamond Buyer's Guide
- Features a diamond price search, gem info, and more.
- Diamond Jeweller, The
- Diamond rings, earrings, bracelets, cufflinks, pendants and necklaces from The Diamond Jeweller.
- Florida Jewelry Appraisers, Inc
- Information about fancy coloured diamonds.
- English Imports
- Specialises in diamond stud earrings, tennis bracelets and certified diamonds.
- Diamonds Wholesale Corporation
- Offers engagement rings, loose stones, and diamond jewellery featuring GIA and AGS certified ideal cuts.
- DiamondTrade, Inc.
- Selection of gemstones, wedding bands, and other jewellery.
- Kwiat
- Designs diamond jewellery in gold and platinum. Includes marquise, pear shape, oval, and princess cut diamonds.
- Diamonds Capital
- Offers certified loose diamonds and fine jewellery at wholesale prices.
- Diamonds On Fifth, Inc.
- Offers diamonds and jewellery at wholesale prices.
- Tradeshop
- Offers a variety of diamonds and jewellery.
- USA Certed Diamonds
- Wholesaler of GIA and AGS certified diamonds, specialising in Superbcert branded Hearts and Arrows. Diamonds can be sent to a local appraiser for viewing prior to purchase.
- Diamond Registry
- Supplier/buyer of loose diamonds for wholesale and retail.
- DiamondSphinx
- Purchase certified loose diamonds directly from the cutter. DiamondSphinx also offers diamond rings, earrings, and other jewellery.
- Certified-Plus Diamonds
- Certified quality plus guaranteed best value. We specialise in fine quality diamonds with ideal to very fine cuts.
- DiamondSource
- Offers GIA certified loose diamonds. Complete instructions on how to read a diamond certificate are also available.
- Five Star Diamonds
- Offers GIA certified diamonds for engagement rings at wholesale prices in Virginia, Maryland, and Washington D.C.
- Lucy's Diamonds
- Offers certified diamonds, watches, and jewellery at wholesale prices.
- Canadian Diamonds Wholesale Ltd.
- Wholesaler of Ideal Cut and other diamonds. Specialises in custom platinum and gold engagement rings.
- Mervis Diamond Importers
- Diamonds direct from South Africa. Learn about the 4 Cs indicating a diamond's quality and value.
- Hardcarbon
- Specialising in loose diamonds and engagement rings.
- BondedDiamonds.com
- Offers GIA and EGL certified quality diamonds at wholesale prices.
- DiamondSupplier.com
- Features a large selection of certified diamonds.
- Van Moppes Diamonds
- Sells loose diamonds at wholesale prices and offers a recut programme for old and/or damaged stones.
- Beverly Hills Diamonds
- Offers a wide selection of GIA and AGS certified loose diamonds at wholesale prices.
- Sirius Diamonds
- Canadian diamond producer.
- Design Jewelers
- Includes a selection of diamond jewellery. Also offers a variety of brand name Swiss watches.
- Josef Herskovits & Co.
- Specialises in coloured diamonds.
- Correia's Jewellery
- Offers loose diamonds and diamond jewellery at wholesale, duty-free prices.
- American Institute of Diamond Cutters, Inc.
- Offers diamond cutting and polishing courses. Also provides cutting and consulting services.
- Donald Haack Diamonds & Fine Gems
- Buys, sells, designs, and manufactures diamonds. Also offers insurance consulting services.
- Diamonds of Palo Alto
- Offers diamond wedding bands and rings as well as other gemstone jewellery.
- Ekati
- Certified Diamond International (CDI)
- Importer and supplier of diamonds to the jewellery industry.
- Ethical Igloo Diamonds
- Features Canadian diamonds that are loose, government certified of origin, non-conflict Canadian Arctic mined and cut, and GIA and AGS ideal-cut graded.
- Brilliant Earth
- Features conflict-free, Canadian diamond jewellery of ethical origin. Brilliant Earth offers certified diamonds, eco-friendly rings, pendants, and earrings.
- Gemnation
- Sells certified GIA diamonds, engagement rings, earrings, pendants, and wristwatches.
- Marcus Jewelers
- Certified diamonds sold at wholesale prices to the public.
- Beverly's Jewelers
- Wholesale diamond and jewellery distributors. Gemologists on premises.
- Natalie K
- Offers a variety of settings as well as "the perfect diamond".
- Find My Jeweler
- Helps consumers find local diamond jewellers.
- Watkins Jewellers
- Offers Hot Diamonds jewellery including rings, earrings, bracelets, pendants, tie slides, and key rings.
- Zolnak Diamonds
- Offers loose cut diamonds of all shapes and sizes.
- Antwerp Diamond House
- Offers diamonds searchable by cut, size, and price, as well as Vryens designer jewellery.
- Diamond Source
- Diamonds and jewlery at wholesale and import prices.
- Creative Jewelers
- DeScenza Diamonds
- Elite Diamond Import
- Insurance replacement specialists.
- Bachendorf
- Specialises in diamonds.
- Gem Diamond Company
- Provider of high-quality certified diamonds, fine jewellery, and pearls.
- Diamond Earrings
- Offers diamond jewellery and solitaire earrings for weddings, anniversaries, birthdays, and other special occasions.
- Direct Diamond Jewelry
- Offers 14k gold diamond jewellery including stud earrings, cross pendants, and horseshoe necklaces at wholesale prices.
- Jack of Diamonds International, Inc.
- Diamonds and diamond jewellery bought and sold.
- Agemforyou.com
- Specialising in loose diamonds, gemstones, and fine jewellery. Also offering jewellery redesign and reproduction, custom jewellery, and clarity enhanced diamonds.
- Diamond World, Inc.
- A direct importer and wholesaler of loose diamonds of all shapes and qualities.
- Diamonds Outlet
- Offers information on diamond quality, value, and care.
- Charleston Alexander Jewelers
- Online selection.
- Loose Diamonds Shop
- Learn how to identify quality certified loose diamonds and find information on cut, colour, carat, and clarity.
- Samuelson's Diamonds
- Offering certified diamonds, jewellery, antiques, and watches.
- Vogue Diamond Brokers
- Finest quality cut diamonds and diamond jewellery.
- My Engagement Ring
- Sells rings, pendants, earrings, and loose diamonds.
- Gemdealers.net
- Features moissanite, diamonds, and other jewellery.
- Cut Rate Diamonds
- Wholesale priced round and fancy shaped loose and mounted, GIA, AGS, and EGL, certified diamonds.
- Ambar Diamonds Inc
- Originators of the Quadrillion square diamond.
- Diamond Exchange
- Offers diamonds at wholesale prices.
- Randor Jewellery Inc.
- Manufacturer and wholesale distributor of gold and diamond jewellery and loose diamonds.
- Thimke Diamond Cutter
- Specialising in the purchase and re-cutting of damaged, old cuts, and poorly made modern diamonds.
- Bullock Estate and Diamond Brokers
- Buys diamonds and diamond jewellery.
- Dutton's Diamonds
- Providing round, brilliant diamonds, fancy diamonds and a variety of coloured gem stones at a reasonable price with satisfaction guaranteed.
- Roman De Leon
- Includes a searchable database, featuring a variety of shapes and grades.
- 1DiamondNow.com
- Offers certified diamonds and jewellery at cutters' prices.
- Diamond Brokerage Service
- Offers certified loose diamonds and engagement rings.
- Diamond-Source.com, The
- Offers certified diamonds in a variety of sizes, cuts, colours, and clarity.
- 1st Class Gems
- Offering limited edition original designer works of art in gold, precious, and semi-precious stones.
- Rex Diamonds
- Diamond jewellery designers. Browse a collection of unique jewellery that featuer Rex branded diamonds.
- Americas Diamonds
- Offers gold and silver diamond rings, charms, earrings, bracelets, and other jewellery.
- Diamond Ring Forever
- Features a selection of fine diamond engagement rings and certified loose diamonds at wholesale discount prices.
- General Diamonds
- Specialising in loose diamonds and engagement rings.
- American Diamond
- Offers wholesale prices on GIA certified diamonds, diamond engagement rings, and diamond jewellery.
- Arizona Diamond House
- Manufacturers and cutters offering wholesale diamonds to the public without the retail markup.
- Absolute Diamond Exchange
- Certified loose wholesale diamonds.
- Diamond Wholesale
- Extensive database of certified diamonds from cutters and wholesalers across the USA.
- Diamond Crystals USA
- Offers natural, uncut diamond crystals at wholesale prices.
- Kripps Diamonds
- Features loose diamonds in addition to fine jewellery at wholesale prices including diamond and gold studs, rings, slides, earrings, lockets and chains, and wedding sets.
- deBebians
- Offers certified loose GIA diamonds in engagement and wedding ring settings for men and women. Also features diamond ring solitaires, anniversary, tungsten, and gold wedding bands.
- E Ideal Diamond
- Importers and cutters of loose diamonds.
- General Diamond Co., Ltd
- Creates polished diamonds with a high standard of cutting and fine finishing.
- Wholesale Canadian Diamonds
- Sells wholesale diamonds from Canadian mines, and custom platinum and gold diamond jewellery.
- Secret Diamond Engagement Rings
- Online shop specialising in discount diamond engagement rings. Also carries diamond stud earrings and wedding favours.
- Richter and Phillips
- Certified loose diamonds offered at wholesale prices.
- Smalldiamonds.com
- Offers loose diamonds, stud earrings, and solitaires.
- Diamond Jewellers, The
- Offers diamond rings, earrings, and pendants.
- Diamond Studs and More
- Offers wholesale diamond stud earrings, diamond solitaire rings, coloured diamonds, engagement rings, and more.
- Diamond Journey
- E-commerce website featuring diamond jewellery available directly or through a nationwide network of independent dealers.
- Forever Diamonds
- Offers diamond jewellery collections including earrings, necklaces, men's watches, bracelets, and gemstone rings.
- APlus Diamonds
- Specialises in loose diamonds and diamond jewellery.
- Solitaire House
- Offers diamond rings, pendants, bracelets, and watches.
- Best Diamond Store
- Sells loose diamonds, diamond rings, wedding and engagement rings, and other diamond jewellery.
- Princess Diamonds
- Offers certified princess cut diamonds and engagement rings.
- Diamonds Direct
- Diamond Brokering, appraisal and cutting.
- Fancy Color Diamond Consultants
- Offers services and information for those seeking to buy or sell a coloured diamond.
- Reeds Jewelers: Diamonds
- Sells gold and diamond jewellery including engagement rings, wedding bands, chains, tennis bracelets, stud earrings, and loose diamonds.
- Diamond Scene
- Offering bold diamond jewellery and loose stones.
- QVC: Diamond Jewelry by Affinity
- Offers a selection of diamond bracelets, earrings, necklaces, pendants, and rings by Affinity.
- Wal-Mart Diamond Jewelry
- Offers diamond jewellery, including rings, earrings, and diamond pendants.
- 365 Diamond
- Online shop offering certified diamond engagement rings and other diamond jewelery, including earrings, pendants, bracelets, and bangles.
- A Diamond Gift.com
- Offers diamond jewellery, including engagement rings, wedding rings, earrings, bracelets, and more.
- A. Jaffe
- Manufacturer of bridal sets.
- All Pendants
- Sells 14k and 18k diamond pendants.
- Anjolee Diamond Jewelry
- Online retailer of diamond jewellery directly from the manufacturer. Site allows user to customise jewellery items according to metal type, diamond quality, size, and weight suit one's taste and budget.
- AquaCrown.com Affordable Diamond Watches & Jewelry
- Quality diamond watches and fine jewellery, including diamond and gemstone engagement rings, pendants, necklaces, pins, brooches, charms, and earrings.
- Bentley Diamond Importers & Fine Jewelry
- Importer of diamonds and fine jewellery from the world's most exclusive showrooms. Shop for diamonds, engagement rings, wedding bands, platinum and gold jewellery, pearls, and more.
- BlowoutDiamonds.com
- Online diamond ring seller offering diamonds at affordable, discount prices.
- Boudov Designs
- Offers custom diamond jewellery design.
- Brilliance
- Online retail store specialising in certified loose diamonds, engagement rings, and diamond stud earrings.
- Diamond Ideals
- Offers loose diamonds, diamond rings, pendants, bracelets, and fine wedding jewellery.
- Diamond Ocean
- Online jewellery store offering customised diamond earrings, rings, bangles, and pendants with your choice of metal, diamond specifications, and price.
- Diamond Showcase
- Retail jewellery store specialising in loose diamonds and custom design.
- Diamond Source of Virginia
- Sells certified loose diamonds and diamond rings with consultations, education, and personalised searches available.
- Diamond Stud Source
- Choose from over 3000 GIA, EGL-USA certified diamond stud earrings matched to your exact specifications of size, shape, colour, carat, clarity, metal, and price.
- Diamonds West
- Offers discounted prices on diamond engagement and wedding rings, earrings, and more.
- Elements in Colored Diamonds
- Offers natural colour and colour enhanced diamond jewellery available upon request. Includes air (white diamonds), earth (brown diamonds), fire (yellow diamonds), and water (blue diamonds).
- Fire and Ice Diamond
- Sells loose diamonds, engagement rings, three stone rings, wedding rings, and anniversary rings.
- Firenze Jewels
- Featuring diamond jewellery, including bangles, bracelets, earrings, necklaces, rings, and more.
- Gemfind
- Offers loose diamonds, engagement rings, and diamond jewellery, including bracelets, earrings, and necklaces.
- Lovelady Diamond
- Diamonds, fine jewellery, and fine watches buyer. Sells jewellery to the public and wholesale dealers.
- Mariloff Diamonds
- Specialising in diamond rings, fine jewellery, and loose diamonds at wholesale prices.
- Mark Broumand Diamond Jewelry
- Custom made and unique diamond engagement rings and anniversary rings, diamond jewellery, and certified diamonds available for sale online.
- On Diamonds
- Offers certified loose diamonds and allows users to design their own engagement and anniversary rings.
- Since1910.com
- Offers GIA certified diamonds, designer engagement rings, and fine jewellery at incredible values.
- Star Facets
- Certified loose diamonds and fine diamond jewellery. Star Facets offers solitaire and engagement rings, wedding bands, and bridal jewellery at wholesale pricing.
- The Diamond Store
- Exclusive diamond jewellery from The Diamond Store.co.uk. View their collection of thousands of pieces of diamond jewellery and get advice about diamonds.
- TheDiamond.com
- TheDiamond.com is a retailer of GIA certified Canary diamonds and yellow diamonds. Offers gorgeous white diamonds at wholesale prices, with an option to build your own ring.
- Trendz, The
- Designer, manufacturer, and retailer of diamond jewellery, engagement rings, watches, pendants, earrings, and more.
- Union Diamond
- Online store for engagement rings. Design your own ring or choose from Union Diamond's beautiful selection of solitaire settings. A diamond and gold ring is the perfect choice as a symbol of everlasting love.
- Van-Daaz
- Diamonds, loose or set in all popular shapes. Manufacturers prices. Natural clarities. Shipping to most countries. Offering also customised purchases of large diamonds.
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