Welcome to the International School of Gemology

Welcome to the International School of Gemology, the worlds finest and fastest growing gemological education organization that offers world class gemology training at the world’s lowest tuition rate. We are the innovators in affordable, quality distance and classroom education in gemology and jewelry appraisal that is based on our certified insurance industry education delivery system. We are proud to provide the world-wide gemstone industry with hundreds of ISG RG and RGA graduates from over 70 nations world wide. Choose from one of our quality education programs below to learn more, or sign up to receive our weekly newsletter. No membership required, no monthly dues to pay.

PLEASE NOTE: To support the industry in these trying times, for a limited time we have lowered our individual course tuition rate by 50% on four gemology courses to $195.00 each. Includes the full Diamonds Course, Colored Gemstones Course, Gemology Tools and Techniques Course and the Created and Treated Gemstones Course.


Registered Gemologist Appraiser

The complete 8 course program of gemology and jewelry appraisal. This is the finest distance education package available for those seeking careers in gemology and/or jewelry appraisal. Includes special courses in appraisal.

Registered Gemologist

This program includes the same 4 courses in gemology but does not include the appraisal related courses. This course is for anyone interested in gemology as a career or hobby but does not need the special appraiser training.

RGA for Other Graduates Program

We invite all graduates of other gemology schools to join us to earn your jewelry appraisal credentials through our RGA for Other Graduates Program. Click the link above to learn more.

Introduction to Gemology Course

If you would like to experience our program before making your decision, or are just looking to learn more about gemology, we have re-launched our popular Introduction to Gemology course here.

ISG Registration Desk

Are you ready to start your new career or to just have fun studying gemstones? Click the link above to go to the ISG Registration Desk and get started!

ISG: Best Online Gemology Schools

We are proud to announce that the ISG has received “Best Online Gemology School” rating by three major internet jewelry organizations, as well as more about ISG in the news.

ISG Video Archive

Visit this page to watch a variety of educational videos produced by the International School of Gemology. This is a free education opportunity provided by the ISG.

Meiji Techno Microscopes

We have been an Authorized Dealer for Meiji Techno Microscopes for 20 years and bring their entire line of world class gemology tools to you at special discount prices.

Visit Jewelry Adjuster

Visit our official insurance services website that founded the ISG. As state licensed Property and Casualty Adjusters, and Certified Insurance Instructors, we provide a world-class education. 

About the International School of Gemology

Learn about the ISG, our history, and our commitment to quality education at an affordable price.

Student Testimonials

No one can tell you about the ISG learning experience better than our students. Read their comments here! Student Testimonials

Meet the ISG

Meet our staff and learn more about who is behind this amazing education opportunity. Learn more here.

Frequently Asked Questions

Industry Recognition

The ISG is recognized world-wide for the quality of our program, and the integrity of our purpose. Learn more about our industry recognition here!

What Students Say?

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Since 2006 the ISG, recently operating as the Insurance Institute of Jewelry Appraisal Inc. has been an Accredited Business with the Better Business Bureau with an A+ Rating. We work very hard to earn and keep your trust.

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