The Aikhal mining and processing division comprises of subdivisions such as the Komsomolskaya and Jubilee open-pit mines, the Aikhal underground mine, mine transport depot and processing plants Nos. #8 and #14.
The diamond, measuring 35.0 x 20.0 x 26.0mm, was extracted from beneath the Yubileynaya Diamond Pipe.
According to the estimates of Alrosa’s Diamond Sorting Center, the diamond may be valued at $1m.
The diamond is a transparent crystal in the shape of an octahedron and displays a yellow hue.
"There are small graphite-sulfide inclusions in its periphery. A production induced scuff is seen on one of its peaks and one of its facets has a shallow crack," the company said in a statement.
Alrosa improved diamond safety through technological arrangements, thereby minimizing the number of affected gems.
