Superdeep diamond reveals new info on earth’s geological processes
Mining News Pro - A recent paper published in the journal Nature points to a “superdeep” diamond recovered in Kankan, Guinea, as the messenger of new information on plate tectonics, the geological processes that give rise to mountains, oceans and continents.
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Visit: 41
Petra Diamonds halts Williamson mine in Tanzania after dam breach
Mining News Pro - The company, which also operates three mines in South Africa, said the eastern wall of Williamson’s tailing dam was “breached”, but said in an email that the pit was not affected.
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Visit: 186
Alrosa discovers 22 new diamond deposits in Zimbabwe
Mining News Pro - Russian miner Alrosa PSJC has discovered 22 new diamond deposits in Zimbabwe, according to the southern African nation’s president, Emmerson Mnangagwa.
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Visit: 371
Petra Diamonds to pay dividends after three-year turnaround
Mining News Pro - Petra Diamonds said on Tuesday it would resume paying a dividend and launch a $150 million debt-cutting plan after stronger prices fuelled by sanctions on Russia’s Alrosa, the world’s top diamond miner by output, boosted its full-year profit.
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Visit: 414
Diamond-formation process inside earth’s core unveiled
Mining News Pro - Researchers at Arizona State University conducted a series of experiments where they compressed an iron-carbon alloy and water together to the pressure and temperature expected at the earth’s core-mantle boundary, melting the iron-carbon alloy.
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Visit: 343
Russian diamonds are quietly flowing again after sanctions chaos
Mining News Pro - The panic that gripped the diamond world this year is starting to unwind as sanctioned Russian mining giant Alrosa PJSC has quietly revived exports to near pre-war levels.
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Visit: 414
Lucara Diamond starts shaft-sinking at $547m Karowe mine expansion
Mining News Pro - Canada’s Lucara Diamond is moving towards the main shaft sinking phase at the underground expansion project of its Karowe mine in Botswana, which will extend the operation’s life until 2040.
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Visit: 462
Diamond exploration hits a new low
Mining News Pro - There are few things that are more alluring and exciting than a diamond — but one of them is a significant new diamond discovery. Now those are truly rare.
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Visit: 465
The Australian diamonds that no one can see
Mining News Pro - Researchers working at the Clarke River Fault, west of Paluma in north Queensland, found the first metamorphic diamonds in rocks in Australia.
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Visit: 571
Botswana president sees progress on diamond pact with De Beers
Mining News Pro - Botswana and De Beers Plc are working out the “finer” details of a new diamond-sales pact and the southern African nation’s government is confident a deal will be struck, President Mokgweetsi Masisi said.
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Visit: 497
Botswana president sees progress on diamond pact with De Beers
Mining News Pro - Botswana and De Beers Plc are working out the “finer” details of a new diamond-sales pact and the southern African nation’s government is confident a deal will be struck, President Mokgweetsi Masisi said.
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Visit: 510
Pangolin Diamonds to buy Amulet’s assets in Botswana
Mining News Pro - Canada’s Pangolin Diamonds (TSX-V: PAN) has unveiled an agreement with Amulet Diamond Corp to buy all issued and outstanding shares of the company’s subsidiary in Botswana for a nominal figure.
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Visit: 197
Fifty-thousand-year-old diamonds may be used to design ultra-hard yet malleable electronics
Mining News Pro - An international team of scientists discovered that diamonds formed during a high-energy shock wave from an asteroid collision around 50,000 years ago have unique and exceptional properties, caused by short-term high temperatures and extreme pressure.
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Visit: 541
China backs Russia in opposing bid to redefine conflict diamonds
Mining News Pro - China has joined Russia in opposing an effort to redefine conflict diamonds to include those sold by individual nations, as a rift between Western and pro-Russia nations jeopardizes the process for certifying rough diamonds as conflict-free.
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Visit: 670
De Beers rises small diamonds price amid shortage
Mining News Pro - De Beers, the world’s top diamond producer by value, has once again increased the price of its smaller stones as sanctions on Alrosa (MCX: ALRS), its Russian rival, have worsened a global shortage caused by two years of covid-related shutdowns.
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Visit: 732
Global diamond trade fractures under the weight of Russia sanctions
Mining News Pro - Russia’s invasion of Ukraine is fracturing a billion-dollar trade that spans the permafrost-laden diamond mines of Siberia, secretive trade houses in Antwerp, dusty polishing powerhouses in India and New York’s glittering designer jewelry stores.
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Visit: 762
Diamond prices are spiking and even De Beers can’t fill the gap
Mining News Pro - Prices are surging in some corners of the rough-diamond market, as sanctions on one of the world’s two giant miners ripple through the supply chain. In the past, the industry could turn to behemoth De Beers to crank out extra gems when supply ran tight — but not this time.
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Visit: 728
Record price tipped for largest white diamond
Mining News Pro - The largest white diamond ever auctioned will go under the hammer in Geneva this week, part of a sale by Christie’s that features two stones weighing more than 200 carats each.
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Visit: 347
Diamond prices are spiking and even De Beers can’t fill the gap
Mining News Pro - Prices are surging in some corners of the rough-diamond market, as sanctions on one of the world’s two giant miners ripple through the supply chain. In the past, the industry could turn to behemoth De Beers to crank out extra gems when supply ran tight — but not this time.
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Visit: 254
Star Diamond confirms Type IIa high value diamonds at Orion North
Mining News Pro - Star Diamond has completed a study into the abundance of Type IIa diamonds in parcels recovered from the Early Joli Fou (EJF) geological units at the Orion North (K120, K147 and K148) and Taurus kimberlites (K118, K122 and K150).
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Visit: 798
Russia says it may buy diamonds from sanctions-hit Alrosa
Mining News Pro - Russia may buy an as yet undetermined amount of rough diamonds from sanctions-hit producer Alrosa through its state precious metals and gems repository Gokhran, the country’s Finance Minister Anton Siluanov said on Wednesday.
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Visit: 629
The diamond world is scrambling to keep buying Russian gems
Mining News Pro - US sanctions on Russia’s giant diamond miner are causing chaos through the industry, leaving traders and manufacturers hunting for workarounds to keep tapping one of the world’s main sources of precious gems.
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Visit: 854
De Beers back to search for diamonds in Angola
Mining News Pro - De Beers, the world’s largest diamond miner by value, has inked two mineral investment deals with the Angolan government granting the company exploration rights for 35 years in the country’s northeast.
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Visit: 656
Signet shocks diamond trade with refusal to buy Russian gems
Mining News Pro - Signet Jewelers Ltd., the owner of Kay Jewelers and Zales, sent shockwaves through the global diamond trade on Wednesday, telling suppliers it would no longer buy stones mined in Russia, the world’s biggest source of gems.
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Visit: 281
De Beers reassures market its diamonds do not come from Russia
Mining News Pro - Diamond major De Beers is encouraging retailers to “buy with confidence” by engaging with their suppliers to understand the origin of their diamonds, following an executive order by US President Joe Biden banning the importation of Russia-sourced diamonds into the US.
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Visit: 596