Dutch Gem Academy

Coloured Gemstone Grading #1


Level Three - Coloured Gemstones or Equivalent


5 Days (30 Hours)

Topics Covered Include

This five-day workshop includes practical instruction on how to access the hue, tone and saturation of coloured gemstones using three popular colour grading systems (Gemological Institute of America, GemDialogue and World of Color) and how to grade pearls, jadeite and opals.

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.