...Buy & Sell Gemstones With The Confidence Of An "Insider"

clear, concise instructions on valuing gemstones

Get The Details

built & maintained by expert gemologists

Inside:
  • Access our gem-specific buying guides
  • Get the latest market-driven gem-pricing tables for all major gemstones
  • Discover the most important gem-specific attributes that drive value
  • Want a second opinion? Converse with IGS members in the forums

The gemstone market can be extremely difficult to navigate...

But a few dollars spent on research can save you hours of time and hundreds of dollars

You're stuck – stuck with the sparse and often incorrect information from Google searches on gemstone value. All you want to do is buy or sell gemstones for a fair price, why does it have to be so hard?

With IGS, you'll get trustworthy pricing and appraisal info created by certified gemologists, all in one place.

What You'll Get


The world's best online resource for gemstone appraisal

  • Comprehensive Coverage Over 15 years, we have assembled detailed pricing and value information for appraising over 70 different gemstones.
  • Pricing From The Experts The values in our guide come from a variety of sources including primary and secondary gemstone dealers, jewelers, miners, and wholesale suppliers of commonly traded gemstones.
  • No Geology Degree Required Our gem-specific buying-guides show you how to assess the "Four C's" that drive the biggest pricing variations for major gemstones

Get Your IGS "Basic" Access Today

We offer a 100% no-questions-asked money-back guarantee for 120 days. If we don't help you make a smarter gem purchase or sale, please contact us & ask for your money-back!

instant access for as little as $5

See Plans & Pricing

Is This Right For You?

We have created the ultimate online resource for gemstone purchasers and sellers.

Join 8,031 others from around the world


"Thank you for the fantastic adventure"

"I just wanted to thank you for the fantastic adventure I have had since becoming a member of IGS. What a gift you give, passing this knowledge along to those of us who are seekers."
- John Parrott IGS Member

"What started as a hobby now is a small home business"

"I have never known or heard of an organization that offers so much for its members, and at such a low cost. What started as a hobby now is a small home business for my wife and I (we also have day jobs and two young children)"
- Ernest and Peggy Roisch IGS Member

IGS "Basic Membership" Pricing & Details

Basic Plan

Access our Gem Price Guides & Members-Only Forums  

Term & Pricing
Monthly $5 (billed monthly)
Annual save 33% $40 (billed yearly)

Interested in learning gems in-depth or getting a professional certification? Check out our other membership offerings here

The "Deal Improvement" 100% Money-Back Guarantee

if our content doesn't help you make a more informed purchase or sale of your gemstone (or gemstone-based jewelry), we will 100% refund your money if you contact our support team

The Nitty-Gritty

  • Monthly Membership Terms:

    $5 per month, cancel anytime

  • Accesing Content:

    all of our pricing-tables and gem-buying-guides are available instantly after your purchase. Your "member dashboard" has links to these pages and the member-forums

  • Why only $5?

    Our team works in the gemology industry, and we hate to see consumers get "taken" because they're negotiating based on bad information.

    The things you learn in your IGS membership will allow you to aquire the "savvy" you need to structure a win-win deal with your counter-party. Net-net, our goal is that you make a considerable return on your investment in the IGS membership.

Take control of your gem-buying (or selling) journey by arming yourself with the EXACT information you need.

FOR AS LOW AS $5/MONTH

Choose Your Plan