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340-carat diamond mined in Russia's Arkhangelsk region

340-carat diamond mined in Russia's Arkhangelsk region Moscow, 14th October 2025 A high-quality diamond weighing 340 carats has been mined at a deposit in Russia's Arkhangelsk region, Governor Alexander Tsybulsky said Monday.  The diamond is one of the five largest diamonds unearthed in modern Russia and the...
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