Coloured Gemstones

Would you like to know everything about the world of coloured stones and know their value on the market?

In a relaxed atmosphere guided by passionate experts, you will discover the fascinating world of coloured stones, going through their history, discovering the extraction methods, the producing countries and mining, their sizes, the different gradation systems for coloured gemstones.

You will used different worldwide grading systems (Gemewizard, World of Color, GIA Gem Set and Gemdialogue). Also, you will be able to understand what is the value of a gemstone compared to other similar gemstones and know its monetary value.

Thanks to the EGM teachers and the courses developed by the WGF (World Gem Foundation), you will discuss their treatments as well as synthetic gems.

For more info, download the Coloured Gemstones Program brochure:

Is this program for me?

This course is aimed at both the curious who wish to know more about the world of gemstones or students wishing to become professional gemmologists.

A good knowledge of gemmology as offered in the Basic Gemmology course is desirable, and essential for those wishing to obtain a final diploma.

Professional gemmologists can also upgrade their knowledge with the in-depth approach of this course in the grading of coloured stones and the update of the latest findings in the world of coloured stones.

How does it work?

This course is available through distance education, with two options:

  • 100% digital
  • Printed material with access to the digital content.

Whatever formula you choose, you will be given an access code that will allow you to access the digital version of the course for life, updated every two years, free of charge.

4 hours of individual tutoring, given by an EGM instructor, are also included in this course. You schedule those tutoring sessions, with online or on-site options, depending on your availability and progress.

In order to help students who choose distance education for their gemmology studies, we offer several gemmology kits ; some that include the instruments required to study gemmology and become a professional; a gem set, made of 40 gemstones carefully selected for their educational value (450 $ taxes included), to help you identify gemstones, treatments and lab-grown gems from the comfort of your home. All gems are labelled and your EGM instructor will help you by explaining what to look for in those specific gems, how to identify them, how to name and draw what you saw and how to handle them with tweezers and other instruments.

Language and schedules

The online course is in English, from the educational material to the online test, to your tutoring session.

It is also available in French. If you want to register in this language, please go to: Pierres de couleur.

Register now for the Coloured Gemstones distance education program and learn gemmology at your own pace.


Tuition fees

Online course with digital version: 745 CAD before tax (i.e. 856.56). The 4 hours of tutoring are included.

Online course with printed material: 875 CAD before tax (i.e. 1,006.03). The 4 hours of tutoring and shipping are included.

How to register

Register online, by mail, by phone at 514 844-0024, or at the EGM (please book an appointment). Registration for courses in French can be done on the French version of the page.

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

Please note that since WGF theory courses are available for a lifetime, the online course fee cannot be refunded once the access codes have been communicated to the student via the internet and the printed documents have been sent. The refund process may be applied to the classroom portion of the fee.

Graduation policy

The Coloured Gemstones course includes 5 online tests after the fourth, tenth, sixteenth, twenty-fifth and thirtieth lesson.

The results are received instantly after the test is completed. To pass the Coloured Gemstones course and receive your letter of completion, you must pass each test with a 70% score or higher. If you did not reach 70% score, a second attempt will be granted, free of charge.

This course is part of the Career Gemmologist diploma program. If you wish to pursue this program, the following course will be Advanced Gemmology.