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ALROSA mined a 207.29-carat diamond

Udachny, May 24, 2016 – PJSC ALROSA, the world leader in diamond mining, announces the recovery of a 207.29-carat rough diamond from the Zarnitsa pipe at Udachny Mining and Processing Division.

The gem-quality rough diamond measures 38.0 х 37.0 х 18.0 mm and is the largest through the history of Zarnitsa. The extracted stone represents a transparent transitional crystal form with a slightly grooved surface. The diamond has no name so far.

Алмаз_207_2 (3)

“The modern mining and processing technologies ensure high degree of diamond preservation,” – noted Gleb Shmarov, Chief Geologist of Udachny Mining and Processing Division.

Open-pit mining at Zarnitsa started in 1999. Identified reserves of the deposit under JORC as of 01.01.2015 amounted to 7.49 million carats. In Q1 this year, as part of increase in the open-pit mine capacity, diamond output exceeded 2.3 times the volume of diamonds extracted during the same period in 2015.

Udachny Mining and Processing Division is one of ALROSA’s major subdivisions engaged in the development of the Udachny underground mine named after Fedor Andreev, Zarnitsa pipe, and Piropovy Ruchey alluvial deposit. The Division started the development of Verkhne-Munskoe deposit that comprises the Deimos, Zapolyarnaya, Komsomolsko-Magnitnaya, and Novinka pipes. In Q1 2016, Udachny Mining and Processing Division mined 1.09 million carats.

Алмаз_207 (3)

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