Harry Oppenheimer Diamond Training School
Johannesburg, South Africa
Gemmology and diamonds: Diamond grading, rough diamond evaluation and diamond polishing; GIA lab classes
On campus and online
Where to study gemmology, diamond grading and jewellery design and making, from short courses to degrees, around the world.
Johannesburg, South Africa
Gemmology and diamonds: Diamond grading, rough diamond evaluation and diamond polishing; GIA lab classes
On campus and online
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