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ISG Registered Gemologist Appraiser Program

The ISG Registered Gemologist Appraiser Program is the world leader in gemological and jewelry insurance appraisal education with fully migrated HTML5 mobile friendly courses you can study anywhere with any computer or mobile device. This complete package includes eight (8) courses in gemology and jewelry appraisal (listed below) that can be taken as a single low-cost package, or for those who need a payment program you can complete the program through our new Individual Course Program. It includes the full Classroom-At-Home lecture series of study. This program is for those who wish to study gemology and personal property appraisal specializing in jewelry and gemstones. Successful completion of this program awards the student the ISG Registered Gemologist Appraiser title. The RGA program includes all of the courses as shown:

Introduction to Watches

Course: ISG105
Lessons: 6

Pearls Course

Course: ISG106
Lessons: 9


Course: ISG101
Lessons: 14

Colored Gemstones

Course: ISG102
Lessons: 17

Gemology Tools and Techniques

Course: ISG103
Lessons: 16

Created and Treated Gemstones

Course: ISG104
Lessons: 14

Evaluating Damaged Jewelry

Course: ISG108
Lessons: 8

Personal Property Appraisal

Course: ISG107
Lessons: 16

ISG Gem Equipment Package Included with your RGA Registration

The ISG Registered Gemologist Appraiser with Equipment Package includes the full RGA course program, all exams and practicals, PLUS the following professional quality gemological equipment package:

Included Equipment: Polariscope with conoscope, Refractometer, RI Liquid, Diffraction Grating Spectroscope, Calcite Dichroscope, Brass MM Gauge, five (5) ISG StudyGem gemstones and assorted tweezers and accessories as available for you to use for study, practice and to keep. This is a special package is offered to ISG Students only enrolled in the RG or RGA programs.


Diamonds, Colored Gemstones, Created and Treated Gemstones and Pearls Grading Practical Package

Upon completion of the eight (8) courses in gemology and appraisal, the ISG will provide the students with a single Practicals Package containing pearls, diamonds, colored gemstones and created/treated gemstones that will be sent to you for practice grading and identification. These will be returned to the ISG office for evaluation of your progress before you take the Final Exams and Practicals.

ISG Scholarship to DCA Sales Training

The Diamond Council of America courses are now available to all ISG Global Community members, this includes all active and graduate students in either the RG or RGA programs. Normally DCA courses are only available through retail jewelry store members. However, the ISG has worked very hard to bring this important jewelry industry sales training to our ISG Community through our ongoing friendship and support of the DCA.

Because we care about your success, the ISG is subsidizing your DCA courses with a $25.00 credit being provided to all ISG Community members that applies toward your DCA courses. This educational credit will be applied at the time of your DCA course registration.

Certificates and Diplomas: A Certificate of Completion after 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 ISG office.

Final Exams: A 90 minute timed online Theory Final Exam of 100 multiple choice and true/false questions with a required passing grade of 70% covering all course materials. Then, a 20 stone Practical Final Exam will be sent to you to test your gemological ability to identify gemstones. International students will be required to place a refundable US$800.00 deposit with the ISG office when requesting practicals. One deposit will cover all practicals.

ISG RGA with Gem Equipment Package and StudyGem Set: US$2,995.00 plus shipping fee based on your location.

This tuition prices includes all of the following:

  1. All eight (8) ISG Registered Gemologist Appraiser Program courses. Includes all exam fees and everything else. Complete. No other fees.

  2. Introduction to Watches: ISG105

  3. Pearls Course: ISG106

  4. Diamonds Course: ISG101

  5. Colored Gemstones Course: ISG102

  6. Gemology Tools and Techniques: ISG103 

  7. Created and Treated Gemstones: ISG104

  8. Personal Property Appraisal: ISG107

  9. Evaluating Damaged Jewelry: ISG108

  10. ISG Practical Gem Identification and Grading Package. A fee and security deposit is required of International RGA Students only. The practicals are required of all RGA students and are available as a single parcel practical set. For information please use this link: ISG RGA Practicals page.

  11. ISG Color Vision Testing

  12. Final Gemology Theory and Practical Exams will require you to take a timed, online written exam of true/false and multiple choice, and to successfully identify 20 gemstones sent to you as a Final Practical Exam. International students will be required to place a refundable US$800.00 deposit with the ISG office when requesting Final Practical Exams. One deposit will cover all practicals 

  13. Listing in the ISG Registered Gemologist Appraiser Directory at the Jewelry Adjuster website, our education and reference site for the insurance industry.

  14. Scholarship to Diamond Council of America sales training programs

    For those who would like to spread out the cost of the program for a slightly higher total price, the ISG RGA Program is available as Individual Courses at this link:


ISG Registered Gemologist Appraiser Program with equipment


complete with all courses, gem equipment package, StudyGems, exams and practicals.

To register, click the link below:

ISG RGA Student Registration Page Click Here