The Aikhal Mining and Processing Division of Alrosa recovered two large gem-quality stones weighing 97.92 carats and 85.62 carats from the Yubileynaya Pipe during January 2018, the Company announced yesterday. Describing the 97.92 carat rough diamond as a transparent octahedron yellow-hue crystal with small sulfide and olivine inclusions near the surface, ALROSA said it measures […]

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