THE PREMIER MARKETPLACE FOR REAL GEMS

Explore the World's Premier Gemstone Marketplace

  • NR! Colombian 5.54cts 17500USD IGI Certified Emerald, 100% Natural Gemstone
  • Certified 1.13 ct Natural No Heat Top Quality Mozambique Ruby
  • Certified 1.23 ct Natural No Heat Top Quality Mozambique Ruby
  • Certified 1.17 ct Natural No Heat Top Quality Mozambique Ruby
  • Certified 1.35 Natural No Heat Top Quality Mozambique Ruby
  • 4.59 Ct. Emerald | Mined in Colombia | Certified by GIA | “Spring Green”
  • "Enchanting 5.80CT Bluish Green Tourmaline – A Radiant Treasure of Nature"
  • Beautiful top quality panjsher 11.06 grams minor oil emerald gold ring
  • 2.71ct Natural Cornflower Blue sapphire with GGTL certificate, VS clean
  • 7.33cts Pink Tourmaline (CM27)
  • 26.05 Cts Natural Blue Aquamarine Lot 14 Pcs Wholesale Loose Gemstones
  • 12.27 CT 9000usd 17X13 MM Rare Red Flash Natural Tanzanite
  • AIG Certified 7.35 Ct Natural Blue Paraiba Tourmaline
  • 5.48 CT 4000usd Loupe Clean Top Grade AAAA Natural Tanzanite
  • *SUPER PREMIUM NO RESERVE* Certified Vivid Red Spinel 4.86Ct.
  • Royal Blue 2.06ct Natural Sapphire origin Sri Lanka Oval VS clean Certified
  • AIG Certified No Heat 1.07Ct Purple Red Color Natural Ruby From Mozambique
  • NR! 52000USD 7.08ct IGI Certified Padparadscha Sapphire , Natural Unheated
  • Flawless 4.16Ct Santa Maria Aquamarine Brilliant Lustrous Cut Gem
  • Cert Padparadscha Sapphire: 1.11 Ct |Timeless Beauty|Mined In Madaga

Connect with Fellow Gemstone Enthusiasts

* indicates required

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.