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A DIAGNOSTIC GUIDE
The Secrets of Gemstones Revealed
All Gemmological Knowledge in One Book
512 pages, over 1,000 photographs and diagrams
USD 150
From Gem to Hidden Worlds
Gemmology Through the Lens of Excellence
Gemological Microscope
Optical Systems Designed For
Gemstones
Emerald Inclusions
618 pages, over 1,000 photographs and diagrams
USD 150
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