The Mir Diamond Quarry in the town of Mirny in Yakutia is the largest diamond quarry in Russia, where diamonds have been mined for several decades. In 1980, it was here that the largest stone in the history of Soviet diamond mining was found. As a result, the depth of the quarry is 525 meters and its diameter is more than a kilometer. It was here, in Mirny, that ACM Group was engaged three years ago in the project of reconstruction of the Azimut Hotel for Alrosa.