April 7, 2021 Type II micro-diamonds dominate Tres-Or Resources’ Guigues pipe The Canadian company said that rare Type II micro-diamonds lacking measurable nitrogen are the main resource at its Guigues kimberlite pipe.
April 6, 2021 Canadian First Nation challenges DeBeers’ mine waste plans The Attawapiskat First Nation opposes a new planned mine landfill on its traditional territory, citing threats to cultural sites.
April 1, 2021 Petra finds 39-carat blue diamond at Cullinan mine The Type IIb gem is said to be of “exceptional quality” due to both its colour and clarity.
March 30, 2021 Petra Diamonds delays release of probe into human rights The diamond miner said it had obtained further information relating to the allegations, which will help with the preparation of its report.
March 26, 2021 Alrosa fetches $23.9m in three diamond auctions The world’s top diamond miner by output held three “special-size diamonds” auctions to celebrate its Jubilee Auction #100.
March 25, 2021 Petra Diamond’s mine guards face fresh human rights abuse claims Guards at the Williamson mine in Tanzania are said to have deliberately swapped rubber projectiles with metal shot against trespassers.
March 25, 2021 Illegal gold rush in the Amazon raises risk to indigenous people Illegal gold and diamond mining in Brazil’s Amazon rain forest is threatening South America’s largest group of native people who still live in relative isolation.
March 24, 2021 Lucara completes mandate for Karowe expansion The existing open pit operation is expected to wind down by 2025.
March 23, 2021 Lucapa Diamond boosts Lulo mine resource by 35% In-situ alluvial resource at the Angolan mine increased to 135,900 carats at an average diamond price of $1,440/ct.
March 22, 2021 Botswana finds 11 diamonds at Thorny River project Drill samples also show “abundant” kimberlitic indicators of the potential commercial quality of the South African project.
Disruption and dislocation: LME metals’ year in seven charts Supply disruption and tariff dislocation have defined the London Metal Exchange base metals complex this year. December 23, 2025 | 07:58 am