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ICA Certified Ruby 1.28 ct No Heat Gem Grade Attractive Red RRP 14,000
1.53 CTS VVS PARTI SAPPHIRE -AUSTRALIA
AWESOME RAREST COBALT BLUE SPINEL 3.05 CTS, CLEAN 100% UNHEATED GEM PIECE
FLAWLESS MASTER CUT PEACOCK BLUE SPINEL 3.25 CTS, 100% UNHEATED GEM PIECE.
EXTREMELY RARE TANZANIAN MAHENGE SPINEL 4.15 CTS, CLEAN UNHEATED GEM PIECE.
AIG Certified NoHeat 7.70Ct Padparadscha Color Natural Sapphire For Jewelry
Certified Padparadscha Sapphire 4.34Ct Natural Orange Pink Sapphire
Lustrous and unique colour citrine (bi colour) 161.55 carats(12 pieces)
AAA Grade Tanzanite 5.32 ct Attractive Blue Hue SKU-90
Full Fire Sphene Ring Stone, Natural Sphene Gemstone For Ring Making
41.38ct Dramatic Fire Black Opal Ethiopian Gemstone
1.04 Cts Certified Very Rare Unheated Natural Bi-Color Sapphire
3.510CT Spinel Stunning Color Top Quality Precision Cut Gemstone @ Tanzania
2.865CT Spinel Stunning Color Top Quality Precision Cut Gemstone @ Tanzania
12.40 ct Natural Sphene – Madagascar’s Fiery Gem with Unmatched Brilliance
8.25 CT 8000usd 14x9mm Loupe clean Rare Red Flash Tanzanite Designer Pair
2.51 CT SPINEL BLOOD RED WEL CUT RARE 99% CLEAN NATURAL UNHEATED SRI LANKA
Top Blue Sapphire 4.06Ct Top Quality Sapphire Srilanka
5.42 Cts Master Cut VVS Top Grade Natural Gorgeous Blue Lustrous Tanzanite
3.79 ct spinel vivid red GFCO certified from Burma

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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.