Moscow–Alrosa said it recovered three large gem-quality rough diamonds from the Jubilee pipe last month, ranging in size from 82 to 163 carats. The first is an 82.82-carat octahedron rough diamond that the company has described as a transparent yellow-tinted crystal with small inclusions. A second weighing 108.34 carats–another transparent yellow-tinted crystal with small inclusions–also […]

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