Dutch Gem Academy

Lab-created & Treated Gems


Level Three - Basic & Advanced Gemmology, Gem Identification (Theory), Gem Identification #1 (Practical), Gem Identification #2 (Practical) or Equivalent


5 Days (30 Hours)

Topics Covered Include

This five-day workshop includes practical instruction on how identify lab-created coloured gemstones with particular emphasis on rubies, sapphires and emeralds. Students will also learn how to detect treatments and enhancements commonly used to improve the appearance of coloured gemstones. To view the class schedule, please click here

Tests and Examinations


Course Credits

Program and
							Course Flow Chart

Upon the successful completion of this course you will receive course credits towards both the Career Gemmologist Diploma and Coloured Gemstone Professional Diploma Programs.

Cost: € 500 (Euros)

In Class

This course is offered at the Dutch Gem Academy.

Calendar: Dates this course is offered at DGA.


If you reside outside of Holland, please contact DGA at information@dutchgemacademy.com for more information.