Coloured Gemstones Grading 2

The Coloured Gemstones Grading 2 course, developed by the WGF (World Gem Foundation) and Gem Color Academy, is devoted to the practical gradation of coloured gemstones by Gemewizard® system.

This online course is offered in partnership with the Gem Color Academy and is designed to create a critical bridge between the gemmological scientific world and the gem and jewellery trade. It has been designed to significantly shorten the period it generally takes to obtain the practical experience required to work in the trade.

Graduates of this course will have a thorough understanding and proficiency in the grading, evaluation and pricing of coloured stones using the significant database of real gem online images and actual gem-like sample kit, achieving a level of comprehension that would normally take years to achieve.

The course will also acquaint the student with some of the most advanced and revolutionary digital colour communication online tools for defining, grading and pricing of coloured stones, powered by Gemewizard®.

Course fees include a one-year subscription to GemePrice™, Gemewizard’s online price list for diamonds and gemstones.

Who should take this course

This course is aimed at lovers of coloured stones with a solid knowledge of gemmology, students wishing to become gemmologists or gemmologists specialising in coloured stones.This hands-on course is online, and is taught by the Gem Color Academy.
It is possible to take this course at the EGM premises, depending on the calendar displayed.
From the first connection to the course, a one-year subscription to GemePrice™ is provided.

Professional gemmologists can also upgrade their knowledge thanks to the in-depth approach this course offers in grading coloured stones. It is also the possibility to access the Gem Color Academy databases, and to benefit from a one-year subscription to GemePrice™.

Format and Update Course

This hands-on course is online, and is taught by the Gem Color Academy.
From the first connection to the course, a one-year subscription to GemePrice™ is provided.


You must have passed the Coloured Gemstones exam.

However, this course may be of interest to professional gemmologists wishing to update or enrich their knowledge. In this case, please contact the EGM at

If you wish to obtain the Career Gemmologist or Coloured Gemstones Professional diplomas, it is strongly advised to respect the organisation of the courses as indicated in the right-hand column.

Language and schedules

This online workshop is presented in English.

It is also available in French. If you want to register in this language, please go to the French page of the course: Gradation des pierres de couleurs 2.

This course is given online. You can therefore take it at home, in a flexible way. It requires 60 hours of tutoring from the Gem Color Academy.

How to register

Online, by mail or by phone at 514 844-0024. Registration for courses in French has to be done on the French version of the page.

Once registered, you will receive your student access code for the course.


Certificate program

The Coloured Gemstones Grading 2 course is sanctioned by an exam. This one is done online. The results are available quickly. A certificate is issued.
Upon successful completion of this practical course, it will count towards the Career Gemmologist and Coloured Gemstone Professional programs (you will receive course credits).
At this point, you should have completed your course for the Coloured Gemstone Professional Diploma (you will be required to take the final exam). If you wish to become a Career Gemmologist, the next course will be the theoretical Diamonds course or the practical course Diamonds Grading / Lab-created Diamonds, depending on the course you have completed so far.

You will find all the necessary information about the WGF courses and the different procedures on the Gem Academy of Canada page.

You can also consult the Frequently Asked Questions (FAQs) on the WGF website.