2M+ REVIEWS | 1000+ NEW GEMS DAILY |
  • 1.5 Ct World Rarest Top Green Hauyne Cut Gemstone From Afghanistan
  • 7.32 CT 7000usd Premium Gem !! Loupe Clean Top Grade Natural Tanzanite
  • 15.1 Carat Brazil VVS1 Aquamarine - Gorgeous
  • 6.72 Cts AAA Grade Natural Greenish Blue Tourmaline Eye Clean Custom Cut
  • 100% Natural 4.80 CT's Vivid Blue Sapphire, Oval Only Heated Well Gemstone.
  • 5.40 Cts Master Cut Fine Quality Natural Honey Color Sphene Amazing Fire
  • 1.48ct Demantoid Garnet
  • 8.18Ct Sphene AAA Fire Exquisite Quality Cut Gemstone
  • VS 5.93Ct Sphene AAA Fire Exquisite Quality Cut Gemstone
  • VS 3.71Ct Sphene AAA Fire Exquisite Quality Cut Gemstone
  • VVS 2.57Ct Fire Sphene AAA Fire Top Color Exquisite Quality
  • GR6042-789-1768 0.72 Cts Natural Green Yellow Diamond Heart Shape GR6042
    0.72 Cts Natural Green Yellow Diamond Heart Shape GR6042
  • 2.35 Cts Vivid Red Spinel Burmese Mogok Mine 100% Natural Unheated
  • SapphirePrecision Cut 2.05Ct Parti Sapphire From Queensland (Australia)
  • 11.14 CT 9000usd Premium Gem Rare Mozambique Natural Master Cut Tourmaline
  • 8.68-CTS AUSTRALIAN SAPPHIRE ROUGH RG-4134
  • 5.43 Carats Natural Blue Tanzanite Pear Shaped Tanzanian Loose Gemstone
  • 6380 Ct GIANT EMERALD HAND PAINTED Natural Faceted Gemstone P-11
  • 5.65 CT TOURMALINE SUNSET PEACH COLOR NATURAL UNHEATED MOZAMBIQUE
  • NATURAL Ceylon Sapphire 1.19ct Deep Blue Round Cut Loose RARE Gem 6mm VVS

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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.