Created and Treated Classroom: Date Coming Soon. 

Created and Treated Gemstones Class is three days of the most intensive and fun study of gemstones that owe their beauty to treatments or being lab-created. Created and Treated gemstones are an essential part of our gemstone industry as they help make more of the gemstone mine production viable in the market and help meet consumer demand for lower-priced gemstone jewelry. The key is for proper disclosure to consumers of a gemstone’s status as created or treated, and to accomplish that; we need educated jewelers and gem dealers. That is the purpose of this class.


This class is intended for beginner to intermediate level gemologists who are seeking instructor led, hands-on learning of created and treated gemstones utilizing over 500 created and treated gemstones from all of the normally seen varieties and sources. Classes are 8:30am – 5:00pm.

To maximize each student’s learning opportunity we are limiting this class to 8 students.

The class will include the following schedule:

  • Monday,: A day of instruction lectures and video with hands-on practice of how gemstones are treated and created, and the various gemological tools that allow us to identify these treatments.
  • Tuesday,: A full day for instructor led created and treated gem identification practice utilizing our ISG Student Reference Collection of over 500 pre-identified created and treated colored gemstones.
  • Wednesday,: A second full day of instructor supported gem identification practice to allow students to get a complete learning experience in created and treated gemstones..

Real Time, High Definition Demonstrations

Classes included real time, high definition demonstrations of the gemology tools and techniques, and special properties of created and treated gemstones to help students gain knowledge in the fastest and most efficient ways.


ISG Student Study Reference Set and Library

Students will have the opportunity to work with world-class gemological tools and equipment, including our ISG Student Reference Library which includes hundreds of created and treated gemstones for hands-on study.

Upon successful completion of this class the student will have an intermediate to advanced understanding of created and treated diamonds including methods to identify as many as possible without advanced testing equipment.

Instructor: Your instructor is Robert James FGA, GG, president of the ISG. Mr. James is a Fellow of the Gemmological Association of Great Britain, Graduate Gemologist of the Gemological Institute of America, and former Certified Gemologist of the American Gem Society. He has taught the FGA course program as an Allied Teaching Centre of the Gem-A, and taught gemology classes for the Dallas County Community College District and the Okaloosa-Walton Community College District. Mr. James holds a Higher Education Teaching Certificate from Harvard University.


Tuition: US$600.00 complete

Class Size: Class is limited to 8 students to ensure each student gets personal service.
Gemological Tools:
 Provided by the ISG with each student having their own gem tool set to work with. Students will not need to bring anything to this class.
Previous Training: Not Required. Beginners welcome to this class.
Place: ISG Classroom, Helotes, Texas (2 miles west of San Antonio, Texas)
Dates: February 12 – 14, 2024
Times: 8:30am – 5pm each day
Certificate of Completion: A Certificate of Completion will be awarded to each student.
Travel Information: The ISG can provide information on suggested hotels but travel arrangements are the responsibility of the student.
Registration: Register for this class using the form below. Please read the next paragraph for further details.

  • Tuition is due at the time of registration to hold your place in this limited-size class. Registrations cannot be reserved without full tuition payment.
  • Cancellation is available at the following rates: 50% refund before January 15. After January 15 no refunds will be given.
  • Class size is a minimum of 4 students and a maximum of 8 students. If the class fails to be filled or any other issue arises, 100% refunds will be provided.

Contact the ISG for any questions.