RGA for Professionals

The ISG Registered Gemologist Appraiser for Professionals is designed for those who have earned gemological diplomas from other accepted schools. It is composed of four courses: Introduction to Watches, Created and Treated Gemstones, Personal Property Appraisal and Evaluating Damage Jewelry. The Introduction to Watches and Created and Treated Gemstones courses are intended to bring your gemology education up to the level required for our Registered Gemologist Appraiser program. The Personal Property Appraisal and Evaluating Damaged Jewelry courses are unique in the industry and are required of all RGA candidates.

To earn your ISG Registered Gemologist Appraiser Diploma you must complete the following courses and practical program:

Program Requirements

This program requires the student to have completed a recognized gemological education from a recognized institute or school as listed below:

  • Canadian Institute of Gemmology
  • Asian Institute of Gemological Sciences
  • Texas Institute of Jewelry Technology
  • Gemmological Association of Great Britain
  • Australian Gemmological Association
  • Canadian Gemmological Association
  • American Gem Society
  • Gemological Institute of America
  • For other accepted schools or institutes please contact the ISG office.

Courses are delivered online through HTML5 mobile friendly and responsive presentation to allow you to study via any format, and via PDF Adobe Reader files. There are no other books or other materials required. Gemological equipment is required to complete the practical exercises.

Introduction to Watches

Course: ISG105
Lessons: 6

Created and Treated Gemstones

Course: ISG104
Lessons: 14

Evaluating Damaged Jewelry

Course: ISG108
Lessons: 8

Personal Property Appraisal

Course: ISG107
Lessons: 16

RGA Program Practicals Module

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

The ISG Practicals Module puts diamonds, pearls and a variety of colored gemstones in your hands to practice 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, diamonds and pearls to you in a single complete package for grading and evaluation once you have completed all courses in gemology and jewelry appraisal for your RGA.  We will grade your work and help you become the finest gemologist/appraiser possible at the world’s lowest cost.

Gemological equipment is required to complete the practical, although the specific equipment needed will be at the discretion of the student. International Students may be required to place a US$800.00 security deposit before shipment.

Gem Equipment Required

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

The ISG Registered Gemologist Appraiser 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. The items shown above can be purchased through GemologyEquipment.com website at discount prices for ISG Students only.

Required Equipment:

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

Exams, Certificates and Diplomas

Here is the information on how you complete the RGA 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, a practical gem identification exam and a jewelry appraisal final 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.

Final Exams: 

  • Final Written Exam: 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
  • Final Practical Exam: 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.

Register for the RGA for Professionals Below.

Go to the RGA for Professionals Registration Page Here: RGA for Professionals.