2M+ REVIEWS | 1000+ NEW GEMS DAILY |
  • GR4548-831-1287 1.01 Cts Natural Green Diamond Round Shape GR4548
    1.01 Cts Natural Green Diamond Round Shape Diamond GR4548
  • 20.00 Cts Natural golden yellow Hessonite Garnet trillon cut
  • CERTIFIED 3.55 CTS STUNNING TOP ROYAL BLUE SAPPHIRE SRI LANKA
  • GIA certified 0.92ct Natural Fancy Deep Yellow Cushion Diamond
  • 0.90ct Pear Natural Fancy Yellow-Brown diamond GIA Certified
  • 0.90ct Natural Fancy brownish Yellow Diamond GIA certified + Video
  • Stone has slight inclusions present but is completely eye Clean.   Please see the magnified close ups to verify for yourself.
    5.46 cts certified Sri Lankan spinel.
  • 8.72cts Zambian Emerald , 100% Natural Gemstone
  • 65.75 CT 60X23 MM Incredible Flashes! Collector Quality Ethiopian Welo Opal
  • GIA Certified 2.05 CTs Top Paraiba Tourmaline Gem
  • 11.60 CT 8000usd Red Flash Rare Blue Tanzanite Designer Pair
  • Welo Opal 58.83Ct Natural Ethiopian Cabochon Play of Color Opal ER897
  • Beautiful 4.03 Ct Natural vivid Green Tsavorite Garnet
  • 0.67 Carats Top Quality Grandidierite Extremely RareMadagascar
  • 3.31 Cts Master Cut Top Quality Red-Orange Color Sunstone Plush Oregon USA
  • 0.26 GIA Fancy Brownish Orangy Pink I2
  • 10.01 CT's Vivid Red Zircon, Cushion Unheated Clean Gem Piece From Ceylon
  • CERTIFIED NATURAL UNHEATED RUBY,1.37 CTS VIVID RED GEM FROM BURMA MINE
  • 12.00 PARAIBA GIL CERTIFIED 100% NATURAL COPPER BEARING UNHEATED
  • 5.00 CRT TOURMALINE STUNNING PINK RARE 100% NATURAL UNHEATED MOZAMBIQUE

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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.