Q4 2020 saw recovery in polished diamond prices – report

The Diagras property covers 22,595 hectares with a total of 23 known kimberlites on trend with the Diavik mine.

During a 5-day experiment, the company extracted 239 diamonds larger than 8 carats.

The diamond miner said the appointment of a new chair was "not appropriate" at this time.

Alrosa will assess Zimbabwe's diamond reserves over the next six months but would only start mining if it can take a majority stake in such a project.

The joint venture partners have awarded a $1.2-billion contract to extend the lifespan of their Jwaneng mine unit 2035.

Miner has hit back at a push to make it more accountable for carbon emissions produced by its customers, including Chinese steel makers.

Russian diamond giant says decision to restore underground mine will be made before 2024, but construction could take up to eight years.

Reserves were estimated at 628 million carats.

Debswana lifted diamond output by 6% to a four-year high of 24.1 million carats in 2018.