Alrosa Finds Russia’s Largest Diamond in a Decade
Alrosa has recovered a 390.7-carat diamond from its Mayat mine in Yakutia, the largest gem-quality rough discovered in Russia in 10 years. The stone is irregularly shaped, bears a light color, and is bordered by a yellow-brown halo, the company said Sunday. The miner found the diamond during the night-washing of rough from the Ebelyakh portion of the deposit, along with a colorless diamond with a traditional octahedron shape weighing 37.7 carats. In 2013, Alrosa
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