Gem and Diamond

Mining News Pro - CIBJO, the World Jewellery Confederation, has described as ‘ground-breaking’ the publication by the International Standards Organisation of ISO 24016, the first-ever standard approved by the body that specifies the terminology, classification and methods to be used for the grading and description of single unmounted polished diamonds of more than 0.25 carats.

Mining News Pro - The World Jewellery Confederation (Cibjo) has welcomed the new publication by nongovernmental body International Standards Organisation (ISO) of the internationally recognised diamond grading standard and says it is a historic moment for the global diamond industry.

Mining News Pro - South Africa’s Petra Diamonds (LON:PDL), which put itself up for sale in June, announced on Wednesday it had found five high-quality blue diamonds, but toned down the news by saying the discovery won’t help turn around its fortunes.

Mining News Pro - The Renard mine, in the James Bay territory of Quebec, will be put back into production this month, mining royalty and streaming company Osisko Gold Royalties announced on Monday.

Mining News Pro - Botswana Diamonds (BOD) has reported positive preliminary results from drilling undertaken at its Marsfontein project, in Botswana.

Mining News Pro - De Beers, the world’s largest diamond producer by value, revealed on Friday it made about three times as much in sales of roughs in the seventh sales cycle of the year as it did in the previous event.

Mining News Pro - BlueRock Diamonds has recovered a 9.7 ct diamond with an initial independent valuation estimate of $75 000.

Mining News Pro - Precious gemstones miner Gemfields is stepping up efforts to market its emeralds and rubies in China after a report highlighted the “huge potential” for ethically sourced gems in the Chinese market.

Mining News Pro - Diversified miner Rio Tinto has provided a virtual preview of rare Argyle pink, red, violet and blue diamonds from its iconic diamond mine, in one of the very last offerings to an exclusive group of collectors, diamond connoisseurs and luxury jewellery houses.

Mining News Pro - An indigenous community whose members belong to the Pemón First Nation issued a communiqué rejecting the opening of an office of the state-owned Venezuelan Mining Corporation in their traditional territory.

Mining News Pro - This week, Rio Tinto hosted its 2020 Argyle Pink Diamonds Tender, which was titled “One Lifetime, One Encounter,” as the event is believed to be one of the very last offerings of the iconic stones before the mine closes at the end of the year.

Mining News Pro - A new IoT solution that provides geofencing to maintain safe work distances for crew operating heavy equipment has been installed at De Beers’ marine diamond mining operations.

Mining News Pro - Lucapa Diamond Company has reached another record of monthly carat recoveries at the Lulo alluvial diamond mine in Angola, Africa.

Mining News Pro - Diamond miner BlueRock Diamonds has sold 3 805 ct of diamonds at an average price of $330/ct for an aggregate consideration of $1.2-million.

Mining News Pro - For the past six months, the global diamond hubs in Antwerp, Belgium, and Mumbai have been at a standstill, with cutting and polishing factories closed and trading floors shuttered. Now, a capitulation on prices by the biggest miners is sparking the industry back to life.

Mining News Pro - US startup NDB, a company that says it has created the first and only universal, self-charging nano-diamond battery that provides thousands of years of charge, announced that two of its proofs of concept achieved a breakthrough 40% charge. This is a significant improvement over commercial diamonds, which have only a 15% charge collection efficiency.

Mining News Pro - For the past six months, the global diamond hubs in Antwerp, Belgium, and Mumbai have been at a standstill, with cutting and polishing factories closed and trading floors shuttered. Now, a capitulation on prices by the biggest miners is sparking the industry back to life.

Mining News Pro - Russian diamond miner Alrosa PJSC joined rival De Beers in cutting prices for its gems, but with a twist — the company changed its billing system so buyers can’t tell which stones are discounted, or by how much.

Mining News Pro - Rio Tinto’s Kennecott copper operation, in Utah, US, on Tuesday became the first to be awarded the Copper Mark – the industry’s independent assurance programme – verifying its copper is responsibly produced.

Mining News Pro - Zimbabwe’s second-largest diamond miner sees demand picking up, after the coronavirus pandemic forced RioZim to halt sales in March amid slumping gem prices.

In Picture