Study Time

Up to 12 months


Gem-A Level 3 Coloured Stones Grading Award

Coloured Stones Grading

If you are interested in grading coloured stones this course will provide you with the necessary knowledge to help you in your career. You will be introduced to the world of colour grading for a range of gemstones, and will cover both common and less common stones, including ruby, sapphire, spinel, chrysoberyl and iolite. You will be able to apply knowledge learnt from the methodology and grading exercises to almost any stone. The course will also introduce you to the latest online/digital grading tools, and allows you to compare results with physical stones from the internet for real-time indicative pricing.


You can enquire about one of our courses by using the form below. Simply select the course you'd like to attend, fill in your details and click submit. A member of our Education Department will review your form before contacting you about your enquiry.

Alternatively, you can download a course application form from our Student Resources section. Once you've completed this you can email this to us at or post it to: Education Department, 21 Ely Place, London, EC1N 6TD.

If you have any other questions you can e-mail us at or call us on +(44) 0207 404 3334.


Coloured Stone Grading


CodeCourse TitleCourse DaysStart DateFinish datePrice*
CSGcourseColoured Stone GradingJan 1, 2018Dec 31, 2018795.00 GBP


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