Russia’s Alrosa finds its largest diamond in more than two years

World's top diamond producer by output Alrosa (MCX:ALRS) has unearthed a rough diamond weighing nearly 200 carats from its Udachnaya pipe, its largest in more than two years.

The 191.46-carat stone, which is white with a slight yellowish tinge, measures 40 mm by 31 mm by 20 mm. It was found earlier this month at the processing plant No 12 of Udachny mining and processing division, the Russian miner said.

Alrosa last found a comparably sized diamond two and a half years ago, it said.

“Such large, gem-quality discoveries, weighing more than 100 carats, confirm that there are many unique precious minerals in the reserves of the Udachnaya kimberlite pipe,” United Sales Organization director, Evgeny Agureev, said in the statement.

Since the beginning of the development in 1967, Udachnaya has yielded hundreds of large diamonds to Alrosa.  The pipe was discovered in 1955 and ranks among the largest primary diamond deposits both in Yakutia and abroad.

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