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GIA Certified 1.27ct Bi Colour Sapphire Green Blue UNTREATED Oval Cut
9.45 CT 9000usd 10x10mm Loupe clean AAAA quality Tanzanite pair
10.30 CT 9000usd 12x10mm Loupe clean AAAA quality Tanzanite pair
Certified Padparadscha Sapphire 2.23Cts 100%Natural Orange Pink Sapphire
Cornflower Blue Sapphire 4.54Ct No Heat Top Quality Sapphire Srilanka
Private sale 1.497 cts vvs vivid Australian Parti sapphire
3.71 CT SPINEL REDDISH PINK RAREST 99% CLEAN NATURAL UNHEATED BURMESE
8.05 CT ZIRCON PINKISH RED WEL CUT RARE 100% NATURAL UNHEATED MINE SRILANKA
6.27 CT 6000usd Collector piece !! Top Quality Natural Tanzanite
AAA Grade Natural Unheated Lustrous Ruby Mozambique 0.42 Cts
Private Listing
0.044 CTS CERTIFIED ARGYLE PINK p7 DIAMOND .1411175
Certified Orange Pink Padparadscha Sapphire 1.87Ct Top Quality Cut Gemstone
CERTIFIED TOP GRADE COBALT SPINEL 3.06 CTS, UNHEATED GEM PIECE SRI LANKA.
2.53ct Alexandrite with perfect Color change VVS certified Sri Lanka
6.95 CT 7000usd 10x10mm Loupe clean Rare Red Flash Tanzanite Designer Pair
7 pieces Garnets private listing
8.20 CT 8000usd 11X9MM Red flash Blue Tanzanite Designer Pair
Lovely 7.38 CRTs Natural pink morganite gemstone.
GRS Padparadscha Sapphire 1.60Ct Natural Orange Sapphire

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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.