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How To Detect A Gemstone Doublet

How To Detect A Gemstone Doublet

The world of gemstones has many facets and aspects that most people don’t know about
  • 19th Feb 2017
  • 0
Ancient Egyptian Jewellery

Ancient Egyptian Jewellery

The ancient Egyptians valued personal adornment highly and Egyptian jewellery was worn by women and men, and of all social classes.
  • 15th Feb 2017
  • 0
What Is Tourmaline And How Does It Grow

What Is Tourmaline And How Does It Grow

We often get asked the question of what is Tourmaline and how is Tourmaline formed. It is one of the most versatile, abundant and colorful gemstones in the world.
  • 7th Feb 2017
  • 1
February Birthstone - The Amethyst

February Birthstone - The Amethyst

February Birthstone - The Amethyst is one of the most well known and beautiful gemstones. Find out more about this majestic gemstone and what it means. Learn why you should consider it as a gift.
  • 28th Sep 2016
  • 2

About Gem Rock Auctions






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Gemstone Auctions Online

Hi! Welcome to Gem Rock Auctions. If you are looking for loose gemstones, gemstone rough, mineral specimens, Birthstones, Diamond, Sapphire 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.

Gemstones For Sale

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 man made gemstone in over 5 years.


With the largest selection of Birthstones on the web you are sure to find the perfect gift. Find out what the birthstones are for each month here.

Treasure Auctions Network

You are visiting a site on the Treasure Auctions Network. Visit any of our sister sites below and get started right away using your login details.

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.