THE PREMIER MARKETPLACE FOR REAL GEMS

Explore the World's Premier Gemstone Marketplace

0.82 ct No Oil Vivid Green Zambian Emerald – Asscher Cut
Rare Imperial Topaz Rare 152.78 Ct Natural Imperial Topaz
Mermaid Tanzanite
Certified Santa Maria Aquamarine 15.40 Ct Mines In Minas Garis Brazil
Huge 680 Carats Premium Piece Natural Smokey Quartz Nice Cut Gemstone
21.10 Carats Natural Tourmaline Seafoam Color From Afghanistan
4.45 Carats Natural Spinel Gemstones
4.08 Crt Spinel SWEET Lavender 100% Natural Unheated mine Sri Lanka
1 piece spinel
Certified / Sunset color Padparadscha 2.33 Ct Natural Orange pink Sapphire
AIG Cert Santa Maria Aquamarine 11.64 Ct Born In Madagascar
Spinels 7 pieces
Mindblowing 1.08 Crt Sapphire Cornflower Blue Natural Only Heated Sri Lanka
Certified top quality green blue 1.65 Cts Natural Paraiba Tourmaline
3.56 Carat AIG Certified No Heat Ruby Gemstones
7.05 CT 13X11 MM 7000usd Loupe Clean Top Grade AAAA Natural Tanzanite
16.92 CT 9000usd Premium Gem Rare Brazil Natural Indicolite Tourmaline
8.35 CT 10x10 mm 8000usd Red Flash Rare Blue Tanzanite Designer Pair
Certified NO HEAT SUNSET Padparadscha 3.63 Ct Natural Color Sapphire
Mozambique Ruby, 0.97 Carats, Vivid Red Pear

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.