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A close-up image of a pile of rough diamonds.
This 1,111 carat rough unearthed in Botswana last year will be sold by Sotheby’s later this year. Courtesy of Lucara Diamond
Indian necklace
Colored Gems – Mine to Market
Worker attaching wax forms

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Quality Assurance Benchmarks
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Summer 2017 Gems & Gemology
G&G Summer 2017 Edition
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