DiamondBuzz
Rio Tinto Unveils Final ‘Beyond Rare’ Diamond Tender- Into the Light
Rio Tinto has launched its final Beyond Rare™ Tender, titled Into the Light, featuring 52 exceptional diamond lots from its iconic Argyle mine in Australia and Diavik mine in Canada.

Part of Rio Tinto’s annual Art Series, the 2025 tender showcases 45.44 carats of rare and vivid pink, red, violet, yellow, and white diamonds. Highlights include six ‘Masterpieces’ sets, 39 individual stones, and seven curated sets. Among the standout gems are a GIA-certified Fancy Red diamond, 12 Fancy Violet diamonds, 76 Fancy Pink variants, two D-colour Flawless whites, and a striking 6.12-carat Fancy Vivid Yellow diamond.

This final tender marks a significant moment, as Argyle ceased operations in 2020 and Diavik is scheduled to close in 2026. “It is hard to overstate the importance of this final collection from two extraordinarily beautiful places on Earth,” said Patrick Coppens, GM of Sales and Marketing, Rio Tinto Diamonds. “We honour the people who brought these rare treasures to the world.”
The Into the Light collection will be showcased in Hong Kong, Australia, and Antwerp, with bidding open until 20 October 2025.

DiamondBuzz
Angola’s ENDIAMA submits fully financed bid for De Beers stake

Angola’s state-owned diamond company ENDIAMA has submitted a fully financed bid to acquire a strategic minority stake in De Beers, as Anglo American prepares to exit the business by end-2025.The Angolan government stressed that the move is not aimed at majority control but at building a pan-African ownership model to secure De Beers’ independence and competitiveness. ENDIAMA said it is open to working with both governments and private investors to ensure De Beers’ continued position as a globally competitive diamond major.
Highlights of the bid:
- Independent, diversified ownership to support long-term growth.
- Pan-African partnership across leading producer nations.
- Angola’s track record as one of the world’s top diamond producers and home to the only world-class mine opened in the last 15 years.
- Strategic commitment to diamonds as a cornerstone of its economy.
The move comes the same week that Botswana, already a 15% shareholder, said it wanted a controlling stake in De Beers. Angola is pushing instead for a shared structure, with Botswana, Namibia, South Africa and Angola holding meaningful positions.
Angola is Africa’s leading diamond producer by value, with output last year surpassing Botswana’s production for the first time in two decades, according to the latest report by the Kimberley Process, an international certification program.De Beers and Angola have been partners since 2022, when they signed exploration agreements later expanded to cover processing. Their collaboration yielded the first significant kimberlite discovery in the country in more than 30 years, announced last month.De Beers chief executive Al Cook at the time called Angola “one of the best places on the planet to look for diamonds.”
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