THE PREMIER MARKETPLACE FOR REAL GEMS

Explore the World's Premier Gemstone Marketplace

  • IGI 1.45CT D COLOUR PRINCESS CUT DIAMOND 2550 reserve
  • Natural Unheated Yellow Sapphire 2.19 Cts Square Cushion Cut Loose Gemstone
  • 23.16 Crt Aquamarine SKY BLUE IF TO VVS 100% Natural Unheated Madagascar
  • 13.71 Crt Spinel Multi Color Lot Natural Unheated Sri Lanka
  • Private Listing for Andrew623 27.63cts Emerald Parcel, Natural Gems
  • Private listing For Andrew623 33.76cts Emerald Parcel , 100% Natural Gems
  • 6.615 CTs Natural Blue Zircon, Well Oval Top Luster Gemstone From Cambodia
  • PICTURES TAKEN IN SUNLIGHT
    NATURAL-RAREST-REDBROWN DIAMOND,2.3MMSIZE-10PCSLOT
  • STUNNING 2.49 CTS NATURAL BEAUTIFUL BI COLOR GREENISH BLUE SAPPHIRE
  • 3.30 Cts AIG Certified AAA Grade Natural Beautiful Blue Cobalt Spinel
  • Certified Top Grade Natural Neon Blue Lustrous Paraiba Tourmaline 0.62 Cts
  • AIG Certified NoHeat BiColor 1.40Ct Natural Blue Green Sapphire For Jewelry
  • AIG Certified No Heat Bi Color Purple Blue 2.14 Carat Natural Sapphire
  • Exceptional Quality Natural Blue Tourmaline Gemstone For Ring 5 CT
  • RAREST 3.42 CTS INTENSE COBALT BLUE SPINEL , 100% CLEAN UNHEATED GEM CEYLON
  • 2.34ct Octagonal/Emerald Cut Blue Sapphire GIA Certified Sri Lanka
  • 1.08 Cts Certified Pigeon Blood Red AAA Grade Ruby Madagascar
  • 14k Yellow Gold – Sri Lankan Blue Sapphire- 0.31 Cts 9pcs White Diamond
  • GIA Certified Natural Blue Sapphire - 2.21ct - Oval Mixed Cut
  • GRA CERTIFICATE Incl.* 6.01 ct. Natural Earth Mined Sapphire Unheated

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Gemstone Excellence By the Numbers: Our Marketplace Milestones

Why Choose Gem Rock Auctions for Your Gemstone Needs

Welcome to Gem Rock Auctions, your ultimate destination for discovering and acquiring an exquisite array of loose gemstones, gemstone rough, mineral specimens, and a diverse range of birthstones including diamonds, sapphires, and rubies. At the heart of our service lies a commitment to bring you closer to the beauty and diversity of gemstones from around the globe.

As a leading global online marketplace, Gem Rock Auctions prides itself on hosting a network of verified sellers. Each seller is rigorously vetted to ensure they meet our high standards of authenticity and quality. This means that every gemstone available through our platform is not only genuine but also adheres to the highest standards of quality.

Our mission extends beyond merely being a marketplace; we are your guide in the vibrant world of gemstones. Through our comprehensive Gemstone Encyclopedia, we empower you to make informed decisions by providing insights and expert advice on what to look for when purchasing gemstones. This educational approach ensures that your journey into the world of gemstones is both enjoyable and enlightening.

At Gem Rock Auctions, we are dedicated to ensuring the integrity and quality of your gemstone purchases. Our platform is more than just a place to buy gemstones; it's a space where the beauty and rarity of gemstones are celebrated and made accessible to you, no matter where you are in the world. Join us in exploring the treasures that lie within the earth and find your perfect gemstone, sourced from the finest locales across the globe.

All sellers on Gem Rock Auctions must comply with our Verified Sellers program which ensures a high degree of industry knowledge, consistent refund policy and pricing.

The Gemstone Sheriff program allows our members to request an audit on any item, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.