De Beers uses geofencing to protect crew on world’s largest offshore diamond mining vessel

The white octahedron of "top clarity" is the largest gem quality diamond and fourth largest stone ever recovered at the company's Gahcho Kué mine, located in Canada’s Northwest Territories.

The Canadamark program verifies that diamonds are natural and untreated, and mined in Canada under a regulatory regime.

After vowing for over a century it would never sell stones made in laboratories, De Beers will start doing so in September.

Petra has been hit by production delays, strikes, a confiscated consignment of diamonds and a strong South African rand.

Alrosa's 2018 production is expected at 36.6 million carats but its sales will be higher than its production - at about 40 million carats.

Signet Jewelers is the first diamond ornaments maker to join De Beers-led blockchain pilot program, Tracr.

Forecasted industry fundamentals point to an environment favoring higher diamond prices over a period of at least the next four years.

Tracking metals across the supply chain has become increasingly important to businesses and consumers - with blockchain, there’s no hiding anything.

With the discovery, the miner has already exceeded the total number of diamonds of over 100 carats recovered in 2017.