Trending Categories

New Auctions

Featured Articles

Black Tourmaline

Black Tourmaline

Black Tourmaline, known as Schorl, is a powerful stone that is abundant in the earth crust. Everyone can benefit from wearing this stone
  • 23rd Aug 2016
  • 1
August Birthstone Peridot

August Birthstone Peridot

The August Birthstone is Peridot. Peridot is an incredible gemstone which can originate from outerspace. Learn more about this beautiful birthstone.
  • 3rd Aug 2016
  • 0
Tahitian Pearls - Natures Renewable Gemstone

Tahitian Pearls - Natures Renewable Gemstone

Tahitian Pearls are the beautiful darker colored Pearls that come in so many different shapes, sizes and colors.. Learn more about this gemstone and browse the beautifully pearls we have for sale.
  • 7th Jun 2016
  • 4
  • 1
How To Buy Sapphires - The Definitive Buying Guide

How To Buy Sapphires - The Definitive Buying Guide

Buying Sapphires can be a daunting experience with so much information out there. Let us guide you through what to look for in your next Sapphire.
  • 1st Jun 2016
  • 5
  • 1

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, 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.

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.