Positive drill results in hunt for more kimberlites at Gahcho Kué for Mountain Province and De Beers

A 157-carat exceptional coloured gem diamond from the Gahcho Kué mine.

Mountain Province Diamonds reports positive drilling results at several targets at the Gahcho Kué diamond mine 300 km east-northeast of Yellowknife, N.W.T. It has intersected 40 metres of kimberlite near the Tuzo resource and multiple intersections – as long as 287 metres of kimberlite – at the Hearne Deep and Hearne Northwest Extension targets.

The Gahcho Kué mine is a joint venture of Mountain Province (49%) and the operator De Beers Canada (51%).

The longest intersection, 287 metres, was drilled at the Hearne Northwest Extension. This target was identified late in 2021 when a 25-metre kimberlite exposure was discovered during routine mining operations in the Hearne pit. Drilling in 2022 pointed toward the presence of a significant, previously unknown kimberlite could exist. During the 2023 drill program, 10 of the 11 holes collared within and outside the Hearne pit intersected kimberlite.

“Combined with our earlier results, we now have 21 drillholes that define the extension below the final pit and to the northwest. We are actively engaged with our operating partner De Beers to look at ways to recover this deeper kimberlite by underground mining,” said Mountain Province president and CEO Mark Wall.

Following the success at the Hearne Northwest Extension, Mountain Province said drilling moved to the Tuzo kimberlite in the hope of finding a similar extension. A new kimberlite about 40 metres northeast of the modeled Tuzo resource was drilled. The intersection returned 40 metres of kimberlite.

Source: canadianminingjournal

55 Carat Ruby, 10 Carat Pink Diamond Each Fetch A Record $34.8 Million At Sotheby’s

The just completed Sotheby’s Magnificent Jewels sale in New York is the first auction to sell two items for more than $30 million.

The first is the “Estrela de Fura,” a 55.22-carat Mozambique ruby that sold for $34.8 million ($630,288 per carat), establishing a world record price for a ruby and any colored gemstone sold at auction. It is also the largest ruby to be sold at auction. Its pre-auction estimate was more than $30 million.

The finished ruby was cut and polished from a 101-carat rough discovered by Fura Gems, a colored gemstone mining and marketing company based in Dubai. It was unearthed at its ruby mine in Montepeuz, Mozambique, in July 2022. The company named the rough gem, Estrela de Fura (Star of Fura in Portuguese). Even in its rough, untouched state, the ruby “was considered by experts as an exceptional treasure of nature for its fluorescence, outstanding clarity and vivid red hue, known as ‘pigeon’s blood’ — a color traditionally associated only with Burmese rubies,” Sotheby’s said in a previous statement.

The 10.57-carat "Eternal Pink” diamond

It’s rare for a mining company to cut and polish the gem and then sell it at auction. The usual route of recently found colored gems is to sell it to a company as a rough where they would cut and polish the gem, then it would sell it privately or at auction. However, Dev Shetty, founder and CEO of Fura Gems, chose to not only go on the auction route on his own, but to embark on a worldwide tour of the rare gem, promoting not only this stone, but rubies from Mozambique as equal to rubies from Burma, which has historically been considered the main source of the most sought-after rubies.

Quig Bruning, head of Sotheby’s Jewelry America, previously said the Estrela de Fura may signal a change of this perception.

“It is undoubtedly positioned to become the standard bearer for African rubies – and gemstones in general, bringing global awareness to their ability to be on par with, and even outshine, those from Burma,” Bruning said in a statement.

Source: forbes.com

Anglo American reports latest diamond sales value for De Beers

Anglo American plc announces the value of rough diamond sales (Global Sightholder Sales and Auctions) for De Beers’ fourth sales cycle of 2023, amounting to US$480 million.

The provisional rough diamond sales figure quoted for Cycle 4 represents the expected sales value for the period 1 and 16 May and remains subject to adjustment based on final completed sales.

Al Cook, CEO of De Beers, said:

“Sales of our rough diamonds in the fourth sales cycle of the year saw a small decrease from the previous cycle as the industry has entered what is traditionally a seasonally quieter period. Rough diamond demand was also influenced by ongoing macroeconomic uncertainty and a slower pace of recovery in consumer demand from China than was widely anticipated.”

Source: globalminingreview

4.83 ct Fancy Blue Diamond Sells for $8.8 million USD

A 4.83 carat fancy vivid blue diamond ring sold for $8.8m at Christie’s Hong Kong as the Magnificent Jewels sale brought in a total of almost $60m.

The brilliant cut IF Type IIb gem (pictured) was surrounded by fancy-cut diamonds, in a gold setting. It sold between the low and high estimates of $7m to $10.2m.

The blue diamond led the sale, followed by two items which both sold for above their high estimates.

An octagonal step-cut 21.38 carat sapphire in a platinum ring set with tapered baguette cut diamonds sold for $4.5m (high estimate $2.3m).

And an 8.92 carats fancy vivid yellow orange pear modified brilliant cut diamond, in a platinum and gold ring, with pear brilliant-cut diamonds of 1.12 and 1.11 carat, sold for $4m (high estimate $3.8m).

Source: IDEX

Botswana president insists on bigger share of diamonds from De Beers venture

Botswana will not back down on demands for a bigger share of rough diamonds from its joint venture with De Beers, President Mokgweetsi Masisi said on Thursday, upping the stakes as talks for a new sales deal appear to be stalling.

Botswana and De Beers mine the precious stones through their equally owned, 54-year-old mining venture, Debswana Diamond Co. The current diamond sales deal, in place since 2011, has been extended three times since 2020 but is set to expire next month.

De Beers, a unit of Anglo American Plc, gets 75% of Debswana’s production, which was 24 million carats in 2022. The balance is sold to state-owned Okavango Diamond Company, a vehicle established in 2011 as Botswana began moves to independently sell some gems outside of the De Beers system.

Masisi, who has been Botswana’s president since 2018 and will seek re-election in next year’s elections, now wants Botswana to sell more of its diamonds outside the De Beers channel.

“Our agreement with De Beers is very restrictive to us. We signed it at a time when we didn’t know much, but now our eyes are open,” Masisi said at a community meeting in Mmadinare, 400 kilometres (248.55 miles) north-east of the capital, Gaborone.

Masisi hinted at a possible stalemate and litigation over the sales agreement.

“Even if we lose the litigation, our diamonds will remain ours and we will never give in. If I am going to lose votes because of this issue, then so be it,” said Masisi, speaking in Setswana.

Masisi has previously threatened to walk away from the talks if Botswana does not get a bigger share of Debswana’s output for marketing outside the De Beers system. The government has not publicly stated what share it seeks, but it is believed to be as high as 50%, double the current allocation.

De Beers was not immediately available to comment.

The diamond giant says Botswana receives more than 80% of returns from Debswana, after taxes and royalties are factored in. De Beers has previously expressed confidence that its five-decade partnership with Botswana will continue, on terms “that make economic and strategic sense for both parties.”

Source: yahoo.com

Fresh sanctions on Russian diamonds put 1 million jobs at risk

G7 countries are imposing fresh sanctions against Russia to try to further hinder its war effort in Ukraine. “If the sanctions continue, then there will be a lot of uncertainty in the employment of one million workers,” said Vipul Shah, chairman of Gem & Jewellery Export Promotion Council (GJEPC).

Ultra-rare Bulgari Laguna Blu diamond sells for $25 million

A rare,11.16-carat fancy vivid blue diamond named the “Bulgari Laguna Blu” has fetched slightly more than $25 million at a Sotheby’s Magnificent Jewels sale in Geneva.

The auction house brought the clock back to pre-pandemic times by achieving the best performance since May 2018, with total proceeds of over 76 million Swiss francs (about $85m).

Sotheby’s noted the exceptional blue diamond was put up for auction last and after a four-minute bidding battle between three telephone bidders and one bidder in the room, it eventually found a buyer on the phone.

The sale made of the Bulgari Laguna Blu the most expensive jewel ever sold in Geneva. It is also the largest blue diamond in a Bulgari jewel and the brand’s most valuable gem to ever be put up for sale.

The Bulgari Laguna Blu is a rarity three times over, as it is a blue diamond, a jewel signed by Bulgari, and an unseen and unmodified gemstone.

Bulgari’s global Ambassador, actress Priyanka Chopra, wore the Bulgari Laguna Blu this year’s Met Gala in New York.

The Italian jewelry maker set the oceanic-blue sparkler in a bespoke diamond necklace for actress Priyanka Chopra Jonas, and the stone then was removed and remounted onto a ring—similar to the house’s original 1970s design.

The diamond was initially mounted as a ring by Bulgari for a special commission by the original owner. It was sold in 1970 and it’s now part of a necklace.

Source: mining.com

Tiffany’s tickled pink to be grabbing the world’s last Argyle diamonds

“This is truly once in a lifetime,” says the jeweller’s chief gemologist of the 35 sparklers acquired from the now-closed mine in the Kimberley.

Vicky Reynolds wants to take you on a date with a diamond.

Reynolds, Tiffany & Co’s chief gemologist, has had the enviable task of chaperoning the final 35 Argyle diamonds sold around the world, meeting with potential buyers and discussing exactly how these incredibly rare and exceptional gemstones will be used.

It is, she says, “the stuff my dreams are made of. This is truly once in a lifetime.”

Reynolds has worked with New York-based Tiffany & Co since 1987 – almost as long as the Argyle diamond mine, owned by Rio Tinto, operated in Western Australia’s East Kimberley region (it opened in 1983). When the mine closed in 2020 due to finite resources, the final annual tender – ordinarily a highly anticipated and prestigious event on the gemstone calendar – was considered the hottest ticket going.

The Argyle mine produced 90 per cent of the world’s pink diamonds, and each year, only 50 to 60 were ever offered in an invitation-only tender process. So when Rio Tinto rang Reynolds after the tender, to offer Tiffany and Co a further 35 diamonds noted for their vivid pink and purple colour, she jumped at the chance.

Source: afr.com

Rio Tinto unveils Argyle Rose heirloom piece

Rio Tinto has unveiled the latest heirloom piece of Argyle Pink Diamonds jewellery, featuring one of the last diamonds to be mined from the iconic Argyle mine in the East Kimberley, Western Australia.

Mining ended at Argyle in November 2020, after 37 years of uninterrupted production, during which the mine became the source of about 90% of the world’s prized rose-to-magenta hued stones. The mine produced more than 865 million carats of rough diamonds.

Designed by Western Australian jeweller Solid Gold Diamonds, the Argyle Rose features a total of 3.25 carats of rare Argyle pink and blue diamonds encrusted in a rose motif, surrounded by white diamonds and hand-set in platinum and 18 karat gold.

The heart of this piece is an extremely rare 1.36 carat, Fancy Deep Pink radiant cut diamond. It is just one of twelve radiant cut diamonds over one carat with a colour grading, 1P, from the last 30 years of production from Argyle.

The surrounding petaled design of pink and blue Argyle Diamonds totals 1.89 carats, together with 2.80 carats of white diamonds. The Argyle Rose is for sale at Solid Gold Diamonds in Perth for A$2 million.

“I am delighted to launch the Argyle Rose. Encapsulating a rich history and an extraordinary provenance, it is both a contemporary treasure and an heirloom for tomorrow,” Sinead Kaufman, Chief Executive of Rio Tinto Minerals said in a statement.

“These rare and precious diamonds are one and a half billion years old, from one of the most beautiful places on earth, and the world is simply not producing them anymore.”

Source: mining.com

Breakthrough Tech ‘Pinpoints Origin of Every Diamond’

A Swiss company claims it has developed technology that chemically profiles any diamond so it can identify the country – and even the specific mine – of origin.

Spacecode says it analyzes diamonds at a molecular level to determine where it was mined, so it doesn’t matter whether the stone has been registered earlier in the supply chain.

The company has been in talks with the G7 and EU nations about the possibility of using its technology to identify Russian diamonds.

“Our research started 10 years ago, but over the past three years we have developed a specific technology that identifies the provenance of any diamond,” said Pavlo Protopapa the company’s CEO.

“We are the first ever to hold such unique technology, which is a major game changer all along the diamond supply chain.”

“We plan to produce by the end of this year our initial units. By 2024, we will offer on a large scale to the global diamond and jewelry industries, a small easy-to-use device that will define the country of origin of rough and polished diamonds.”

Protopapa added that “in meetings with the G7 and the EU representatives, we have received enthusiastic interest. Within months, we will deliver a small, easy-to-use device that will identify Angolan, Botswanan, South-African and of course, any Russian diamonds. We will leave it for the politicians to decide what to do with it”.

Spacecode’s breakthrough technology analyzes the chemical composition of a diamond on a molecular level, and with Artificial Intelligence tools, creates a “chemical profile” of the run of the mine of a specific diamond mine.

The technology identifies not only the country of origin, but even the specific mine in which it was mined.

Spacecode’s diamond inventory management technology already tracks more than 25 million stones. The company has a team of 15 engineers and specialists, and over 300 clients.
Its technology could be adopted by the G7 and the EU to impose effective sanctions on both rough and polished diamonds from Russia.

It could also be used by the Kimberley Process and other organizations, to end, for example, the export of Angolan diamonds through other African countries.

Source: IDEX