THE PREMIER MARKETPLACE FOR REAL GEMS

Explore the World's Premier Gemstone Marketplace

NO RESERVE 3000usd Tsavorite1.56ct from Kenya and gold 18k! 3000USD
Private Listing 7.15 Carat Fiery Sphene from Madagascar
2.15ct 100% natural Sunset Color Padparadscha sapphire WITH certificate
11.46ct Natural Sunset color Orangish pink Sapphire Sri Lanka
5.14ct Burma Blue Sapphire GGTL Certified Untreated cornflower Blue
6.46 CT 6000usd 10.5x8.5MM Red Flash Blue Tanzanite Designer Pair
3.69 Cts Unheated Master Cut Natural Rare Bluish Lavender Color Spinel VVS
3.20 CT SPINEL COBALT BLUE HEART SHAPE 99% CLEAN NATURAL UNHEATED SRI LANKA
14.80 CT AQUAMARINE SEA BLUE WEL CUT 100% NATURAL UNHEATED MINE BRAZIL
3.61 CT SPINEL LAVENDER PURPLE ROUND SHAPE 100% NATURAL UNHEATED SRI LANKA
4.01 PARAIBA GIL CERTIFIED 100% NATURAL COPPER BEARING UNHEATED
1.69 PARAIBA GIL CERTIFIED 100% NATURAL COPPER BEARING UNHEATED
2.12 Ct AA Tanzanite Fancy Cut Awesome Luster TZ15
2.10 Ct AA Tanzanite Fancy Cut Awesome Luster TZ14
GUILD Certified! 10.76 Carats Vivid Green Natural Emerald From Zambia
CERTIFIED 3.04 Crt Cobalt Blue Spinel Natural Unheated Gem Mine Tanzania
1.0ct Diamond color I, certified HRD.
5.10 CT SPINEL PADPARACHA ORANGE WEL CUT RARE 100% NATURAL UNHEATED BURMESE
1.18 CTS PADPARADSCHA SAPPHIRE CERTIFIED 100% NATURAL UNHEATED SRILANKA
6.01Cts Natural Unheated Rhodolite Garnet Fancy Rectangle Cut Loose Gem

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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.