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Serpentine Mineral

Serpentine Mineral

Serpentine does not refer to one single mineral but a group of related minerals. Some say that this gemstone earned its name from the word “Serpent”
  • 29th Apr 2016
  • 0
What are Synthetic Gemstones, Imitation and Simulants

What are Synthetic Gemstones, Imitation and Simulants

What are Synthetic Gemstones, Imitation and Simulants? We will explain the difference and how some of them are created.
  • 19th Apr 2016
  • 2
Mahenge Spinel - The Stone That Changed Everything

Mahenge Spinel - The Stone That Changed Everything

Mahenge Spinel is the famous stone that changed the perception of Spinel forever. Learn more about this gem and view our beautifully cut stones for sale.
  • 6th Apr 2016
  • 3
April Birthstone - Diamond

April Birthstone - Diamond

The April birthstone is the gemstone that every women wants. Diamond. Learn about this stunning birthstone and why you should consider it as the perfect gift.
  • 4th Apr 2016
  • 3

About Gem Rock Auctions






Open Auctions


Sold Auctions

Hi! Welcome to Gem Rock Auctions. If you are looking for loose gemstones, gemstone rough, mineral specimens or anything else to do with gemstones than this is the place to be. Gem Rock Auctions is a global marketplace where sellers from all over the world who have been verified and approved can sell their gemstones direct to you.

What makes us different to other websites selling gemstones? Two main things set us apart.

  1. All of our sellers are handpicked and approved by use. They must have product knowledge, customer service skills and most importantly they must have a passion for the gemstone industry. We call them our Verified Sellers.
  2. Our Gemstone Sheriff program is a world first. A panel of independent gemologists review any items that a customer requests to be reviewed. This program ensures a high level of item accuracy and we are proud to say that we have not sold a synthetic or manmade gemstone in over 5 years.

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Verification Programs

Verification Programs

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 wholesale pricing.

Verification Programs

The Gemstone Sheriff program allows our members to request an audit on any auction, which is completed by an independent gemologist who assesses the accuracy of the item description and pictures.

Hello! Gem Rock Auctions is a global marketplace offering beautiful gemstones from professional gemstone cutters, dealers & miners. Register for $10 off your first purchase.