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Diamonds and
Diamond Grading Course

Diamonds
for the Retail Jeweller Course

Metals used in Jewellery Course

Essentials of
Coloured Stones Course

Coloured Stone
Grading Course

Coloured Diamond
Grading Course

Essentials of
Coloured Stones Course
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Home
About
Courses

Diamonds and
Diamond Grading Course

Diamonds
for the Retail Jeweller Course

Metals used in Jewellery Course

Essentials of
Coloured Stones Course

Coloured Stone
Grading Course

Coloured Diamond
Grading Course

Essentials of
Coloured Stones Course
Pricing
Videos
Blogs

Gem Training International

Orthoclase Feldspar

Orthoclase feldspar SQ/Emerald Cut 51.9720 ct

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