Colored Stone Grading
At a Glance
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What do I earn?
GIA Letter of Completion
How can I take it?
On Campus in London
How long will it take?
3 Days
COLORED STONE GRADING
Using GIA's Colored Stone Grading System, discover how to describe colour in terms of hue, tone, and saturation.
Learn how to judge clarity and cut quality factors of the coloured stones you buy and sell.
Increase the consistency and accuracy of your coloured stone grading skills through extensive hands-on practise using actual gemstones provided by GIA.
Who can enrol?
The Colored Stone Grading Extension Class is a self standing class offered to anyone who would like to learn the practical skills of grading coloured stones. There are no prerequisites.
The class is also a practical requirement for Distance Education students enrolled in the Colored Stones or Gemologist Programmes.
