What Will I Learn?

  Gem identification procedures.
  Proper instrument uses and techniques.
  How to identify and/or separate a minimum of 300 gemstones.
  The properties and attributes of a variety of gem materials.
  How to connect this knowledge with the real-gem world & jewelry industry.
  How to identify simulants, as well as synthetic and treated materials.
  How to grade a gemstone for Color, Carat, Clarity, Cut.
  Understand the synthetic processes.
  What to do in a gem market.
  Understand how gemstones are priced.
  How to price a colorless diamond.


Briefing and practical lab on campus AIGS, Bangkok
1.75 month or 35 days (5 days per week = 7 weeks) from 09:00 - 16:00 hour

Student can also do practical on campus at a later date (current fee at the time of enrollment) and receive the Accredited Gemologist Diploma (A.G.)

Exam: Three attempts within 3 months

Theory: Exam online 75%

Practical: On Campus – 90%


No. Subject Theory Practical Total Remarks
1-4 A.G.Diploma USD1,100 USD5,500 USD6,600 Expires 3 years after registration


For Maximum benefit, theory of each course must be completed wihtin deadline below.

No Subject To be completed within
1 Gem identification 3 months
2 Synthetic and Treated Gem identification 1 months
3 Colored Stone Grading and Pricing 1 months
4 Diamond Grading and Pricing 1 months