Registered Gemologist

IIJA Registered Gemologist Program Required Course List

Hey Robert, Just wanted to thank you and your staff for doing an awesome job with the ISG training programs. I could not be more proud of being a student and member of this fine organization. I look forward to a long professional relationship with ISG. 

July 15, 2017

The IIJA Registered Gemologist Program is the world leader in gemology education with courses designed, developed and produced by professional gemologists holding the world’s top gemology credentials. Our program consists of fully migrated HTML5 mobile friendly courses you can study anywhere with virtually any computer or mobile device. This complete program includes eight (4) courses in gemology (listed below) that are taken as individual courses, and the RG Practicals and Exams Module also listed below. You can save money by using our single payment program package options below. This program includes the full Classroom-At-Home lecture series of study. This program is for those who wish to study gemology, with the opportunity to upgrade to the full RGA Program at a later date by getting full credit for this program. Successful completion of this program awards the student the IIJA Registered Gemologist title.

Program Course List

To earn your IIJA Registered Gemologist Diploma you must complete the following courses and practical program. Click on the course images to visit the course page.


Course: IIJA101
Lessons: 14

Colored Gemstones

Course: IIJA102
Lessons: 17

Gemology Tools and Techniques

Course: IIJA103
Lessons: 16

Created and Treated Gemstones

Course: IIJA104
Lessons: 14

RG Practicals and Exams Module

Sections: 2

RG Program Practicals Module

To complete your RG program you will be sent the gemstone practical package for hand's-on practice and evaluation.

Practical Set

The IIJA Practicals Module provides you with hand’s-on experience by sending you a large collection of diamonds, colored gemstones and a special collection of Created and Treated Gemstones provided to us from Chatham Created Gems. We provide this collection for you to get hand’s-on practice of your skills, right in your own home. No need to make expensive and time consuming trips to take your practical like other schools. With our Classroom-At-Home program we send the gemstones and diamonds to you in a single complete package for grading and evaluation once you have completed all courses in gemology for your RG. We will grade your work and help you become the finest gemologist possible at the world’s lowest cost. The IIJA Practicals Module is included with your single payment course package, and available as a stand-alone module for those taking the Individual Course program.

Gem Equipment Required

Here is a list of gemological equipment you will need to complete the practicals section of the RGA Program.

The IIJA Registered Gemologist Program Practicals Module will require you to either own, or have access to, a minimum level of gemology testing equipment. These tools are crucial to your being able to complete the hands-on section of the program. Here is a list of equipment you will need below. The IIJA Gem Equipment Package is available only to IIJA Registered Students at this link: IIJA Gem Equipment Package.

Required Equipment:

  • Polariscope with conoscope,
  • Refractometer, RI Liquid,
  • Diffraction Grating Spectroscope,
  • Calcite Dichroscope,
  • 10x Jeweler’s Loupe
  • MM Gauge
  • Gemstone holder/tweezer

Exams, Certificates and Diplomas

Here is the information on how you complete the RG program.

Certificates and Diplomas:A Certificate of Completion is awarded to the student after successful completion of each course. The Registered Gemologist and Registered Gemologist Appraiser diplomas are awarded after completing all courses, final exams, and practical exams. Final exam includes online written exam and a practical gem identification exam sent to you for completion and return to the IIJA office.

Registry of Gemologist Appraisers: Through our Jewelry Adjuster partnership in the insurance industry, the IIJA maintains a Registry of our Registered Gemologist Appraisers and Registered Gemologists to the insurance industry. 

Advanced Insurance and Gemological Lab Support: The IIJA maintain outreach programs to the local insurance industry for our graduates. Additionally, we provide advanced gemological lab services to our graduates to help them maintain top level credentials and services within their market regions.

2 Year Re-Certification: The IIJA Registered Gemologist Appraiser and Registered Gemologist titles require re-certification every 2 years. The re-certification process includes a refresher course, updates on the latest industry developments and an exam to insure the title holder is up to date with the latest information and developments of the industry. This is standard operating procedure of all insurance related industries to maintain professional standards. 

IIJA Logo and Link: It is also required that RGA and RG title holders maintain the IIJA logo and link on their websites as part of the graduate support of the IIJA.

Start When You Are Ready To Begin!

You may begin your study towards the IIJA Registered Gemologist Diploma with any of the listed courses. Work at your own pace, study when and where you have the time. Your future is in your hands with the Insurance Institute of Jewelry Appraisal.

You can begin immediately by choosing an individual course, or choose a money-saving package program below. 

IIJA Single Payment Program Package Registrations

Save money by using one of our single payment package plans.