Rio Tinto’s Argyle mine has yielded the largest gem-quality white diamond in its 35-year history, the miner said Tuesday. 

The 28.84-carat stone, named Argyle Octavia for its octahedral shape, was discovered at the Australia-located mine last month. 

“This discovery…...

The deep-dive session focusing on recent standard-making developments in upstream and downstream diamond supply chains, at which the WDC presented its revised System of Warranties, in session on April 24, 2019.

Senior officials of the World Diamond Council (WDC) have p...

Petra Diamonds has unearthed a white diamond weighing 209.9 carats at its Cullinan mine in South Africa. 

The D-color, type II, gem-quality stone is the fourth over 100 carats the miner has recovered this year, and the third since the beginning of March, it said last...

The US government wants the jewelry industry to declare the origin of all materials in products, trade organizations learned this week.

State Department officials met with industry representatives on Monday to brief them on the plans.

The possible rules would cover a...

Alrosa will deepen its Akhail underground deposit, extending the mine’s life by 10 years and adding 20 million carats to the resource. 

The project will cost the Russia-based miner RUB 10 billion ($156.9 million), and will be carried out in phases starting from 2020,...

Alrosa revealed a 118.91-carat gem-quality diamond that is recovered from its  "International" mine, which is located close to the town of Mirny in the Sakha Republic of the Russian Federation. 

The company said that stone, which was found...

Alrosa has started diamond production at a new deposit in Yakutia with an expected mine life of 11 years, it said Wednesday. 

The Zarya pipe will help compensate for the diminishing resources at the miner’s Komsomolsky open-pit site, Alrosa noted. It will have the cap...

GemFair, a pilot project developed by De Beers Group, that aims to create a secure and transparent route to market for ethically sourced artisinal and small-scale mined (ASM) diamonds, is scaling up its operations in Sierra Leone to give more miners the opportunity to...

Trans Atlantic Gem Sales (TAGS) will be holding a rough diamond tender at the Dubai Diamond Exchange in the Almas Tower in Dubai from the 7 to 14 May 2019, according to a press note from the company.

Two regular productions from South Africa and Angola w...