Rio Tinto today reported a slump in half-yearly sales and production as its Diavik diamond mine in Canada slid into the red.
The Australian mining giant reported a 15 per cent increase in overall profits across all divisions to $5.8bn for the six months to 30 June, but its diamond operation suffered a $65m loss. During the same six months of 2023 it made a $44m profit.
The Half Year Results made passing mention of “lower volumes” of diamonds, but chief executive Jakob Stausholm offered no explanation.
Revenue from diamond sales was down 40 per cent during H1, from $250m to $149m. Production fell 25 per cent, from 1.924m carats to 1.441m carats.
Earlier this month the company said production at Diavik had fallen by by 28 per cent during Q2, impacted by the transition to underground operations and the plane crash in January that killed four of its workers and two crew members. A chartered Jetstream twin turboprop airliner crashed shortly after take-off from Fort Smith Airport.
Rio Tinto said it was delighted with the results of its first Beyond Rare Tender of polished pink and red diamonds from Argyle, in Australia, and yellow stones from Diavik, Canada, though it declined to reveal any prices.
Sinead Kaufman, chief executive of Rio Tinto Minerals, said only that the results reflected the global demand for highly collectible natural colored diamonds.
The first in a series of sales featured a collection of 87 diamonds, weighing 29.96 carats in total. Successful bidders came from Australia, Europe, Japan, Hong Kong, Singapore, US and Israel.
Among the lots were seven Masterpiece sets of Argyle dink diamonds and yellow Diavik diamonds, 11 matched pairs of colored diamonds and 30 single diamonds, including one remarkable fancy red Argyle diamonds.
The iconic Argyle mine closed in November 2020 after 37 years. It produced 90 per cent of the world’s pink, red, blue and violet diamonds.
Rio Tinto is going ahead with a $40 million expansion of its iconic Diavik diamond mine in the Northwest Territories of Canada, which will extend the operation’s life to at least early 2026.
The approved first phase of the project will expand diamond extraction underground, below the existing A21 open pit. Mining of that area, opened in 2018, recently concluded.
A second phase an additional cost will be put forward for approval in 2024, Rio said.
Phase one below A21 is slated to produce an extra 1.4 million carats, with phase two adding another 800,000 carats.
“This is good news for our employees, partners, suppliers and local communities in the Northwest Territories,” Sinead Kaufman, Rio Tinto Minerals’ chief executive, said in a statement.
Rio Tinto became in 2021 the sole owner of the operation, after buying the 40% share held until then by Dominion Diamond Mines.
The company has operated Diavik since production began in 2003. Located approximately 300 km north-east of Yellowknife, the mine employs over 1,100, of which 17% are Northern Indigenous people.
Diavik is Canada’s largest diamond mine in terms of production with between 6 and 7 million carats of rough diamonds produced each year. Since mining began in 2003 Diavik has produced over 100 million carats of diamonds.
The Northwest Territories’ two other diamond mines – Ekati, operated by Arctic Canadian Diamond and De Beers-Mountain Province’s Gahcho Kué – are expected to close in 2024 and 2028, respectively.
Diavik is about 30 km southeast of Ekati, and Gahcho Kué is 125 km southeast of Diavik.
Pink and yellow diamonds from two iconic Rio Tinto mines – Argyle and Diavik – have been brought together to create a unique ring.
It’s called Diavik Midnight Sun and has been valued at $1.24m.
An 18.08 carat fancy intense yellow oval diamond from Diavik, in sub-Arctic Canada, contrasts with an intricate setting of rare Argyle pink diamonds, from the now-closed mine in in the remote East Kimberley region of Western Australia, weighing 4.09 carats in total.
The yellow diamond was cut from a 36.75-ct rough gem, described as one of the finest large yellow diamonds uncovered at Diavik.
Rio Tinto’s general manager of sales and marketing for its diamonds business, Patrick Coppens said “This combination of a rare yellow Diavik diamond and Argyle Pink Diamonds, the rarest diamonds in the world, is a special moment in the history of Rio Tinto’s unique place in the natural fancy coloured diamond industry.
He paid tribute to luxury jeweler Musson for creating the ring. The Diavik Midnight Sun takes its inspiration from the exquisite natural phenomenon that occurs when the sun is seen at midnight in the Arctic, exhibiting beautiful golden and pink hues.
The Hero Diamonds from the 2021 Argyle Pink Diamonds Tender
Rio Tinto’s final Argyle Pink Diamonds Tender collection of rare pink, red, blue and violet diamonds is being showcased to connoisseurs, collectors and luxury jewellers in Antwerp, Belgium.
The Argyle Pink Diamonds Tender, an annual invitation-only event for the past 38 years, is widely considered to be the most anticipated diamond sale in the world, showcasing the pinnacle of Argyle’s production to an exclusive group of collectors, diamond connoisseurs and luxury jewellery houses.
Mining ceased at Argyle on 3 November, 2020 and the 2021 Argyle Pink Diamonds Tender is the final collection of the rarest diamonds from the final year of Argyle operations.
Patrick Coppens, General manager, Sales and Marketing for Rio Tinto’s diamonds business said “The first Argyle Pink Diamonds Tender was held in Antwerp in 1984 and I am delighted to host the final epic collection in Antwerp. Over the past 38 years Argyle pink diamonds have pushed the boundaries of rarity and value appreciation to new extremes.
“When you consider the number of diamonds presented at the annual Argyle Pink Diamonds Tender since 1984 would barely fill two champagne flutes, you begin to grasp the rarity and the tremendous gravitas of this final collection. Many of the invitees have participated in the annual Argyle Pink Diamonds Tender for more than three decades and across generations, so it is an emotional moment in the history of Rio Tinto’s Argyle Pink Diamonds business and the natural fancy coloured diamond industry.”
Comprising 70 diamonds weighing 81.63 carats, the 2021 Argyle Pink Diamonds Tender has a record number of diamonds larger than one carat. The collection is headlined with Lot Number 1, Argyle Eclipse™, a 3.47 carat diamond that is the largest Fancy Intense Pink diamond ever offered at the Tender.
Titled The Journey Beyond, the 2021 Argyle Pink Diamonds Tender takes its reference from the 1.5 billion year journey from creation to discovery and their remarkable impact on the world diamond and jewellery history. The Tender collection comprises five ‘hero’ diamonds selected for their unique beauty and named to ensure there is a permanent record of their contribution to the history of the world’s most important diamonds:
Lot 5: Argyle Bohème™ 1.01 carat, radiant shaped Fancy Red diamond
Also offered alongside the 2021 annual Argyle Pink Diamonds Tender are 41 lots of carefully curated Argyle blue diamonds, weighing 24.88 carats in total. Titled Once in a Blue Moon, these are the very last blue and violet diamonds to emerge from the Argyle mine.
Both face to face and virtual viewings are being conducted in Antwerp catering for those markets where COVID-19 restrictions prevent travel. Bids close on October 4, 2021.