Diamond Grading
At a Glance
Download application form (pdf)
You will need the Adobe® Acrobat® Reader™ to view these files. Please click on this logo to download
What do I earn?
GIA Letter of Completion
Where do I take it?
At GIA London.
How long will it take?
5 Days
Diamond Grading Lab Class
Learn how to judge and grade clarity, colour, and cut quality factors of round brilliant diamonds.
Recognise the most common diamond features, and spend over 18 hours practising grading techniques with actual diamonds that have been carefully selected and graded in GIA's own Gem Laboratory.
Through our unique combination of one-on-one coaching and integrated multimedia presentations, you learn to grade diamonds consistently and accurately using modern gem microscopes.
Learn diamond grading from the creators of the 4Cs and the International Diamond Grading System™ – GIA.
Who can enrol?
The Diamond Grading Extension Class is a self standing class offered to anyone who would like to learn the practical skills of grading diamonds. There are no prerequisites.
The class is also a practical requirement for Distance Education students enrolled in the Diamonds or Gemologist Programmes.
