Stone was recovered from the Neck zone of the Mothae kimberlite, not part of the current one-million carat Joint Ore Reserves Committee-compliant resource.
On May 17, Peter Karakchiev, ALROSA's Head of International Relations, was elected as RJC's Vice Chairman at its 2018 annual general meeting held in Moscow.
Despite mining contributing about 6 per cent of the country's GDP, a study revealed that almost six out of 10 of young Australians know nothing at all about mining careers.
The global market for polished coloured diamonds is now dominated by Rio Tinto and Anglo American's De Beers. But state-controlled Alrosa aims to compete.
The Farnese Blue diamond, which was passed down through European royal families for about 300 years, sold Tuesday for $1.4 million more than the maximum figure experts estimated it would fetch.