DiamondBuzz
Rare Pink Diamond Ring Expected to Fetch $9M at Phillips Geneva Auction
A rare fancy vivid purplish-pink diamond ring is expected to lead Phillips’ Geneva Jewels Auction: V on November 10, with an estimated value of around $9 million, the auction house announced last week.
The centerpiece of the ring is a 6.95-carat, VVS2-clarity, type IIa pink diamond, flanked by two triangular white diamonds. Its vivid color and exceptional clarity place it among the most coveted stones in the world of high jewelry.
The Geneva auction will also feature a selection of prestigious pieces, including jewels from the Vanderbilt family collection, and signature creations by top luxury houses such as Van Cleef & Arpels, Cartier, Bulgari, and Graff.
Ahead of the sale, Phillips will tour highlights from the collection across major cities including New York, Singapore, Taipei, and London, before presenting the full auction in Geneva.
This ring features a step-cut, 18.09-carat Kashmir sapphire with diamond shoulders. It has an upper estimate of CHF 2.2 million ($2.8 million).
A pair of earrings consisting of brilliant-cut, D-color, VVS1-clarity diamond studs weighing 8.28 and 8 carats will go on the block for up to CHF 680,000 ($850,000).
Phillips will offer this ring, bearing an old-cut, 10.08-carat, light-brown-pink, type IIa Golconda diamond. It’s expected to fetch up to CHF 520,000 ($650,000).
Schlumberger created this necklace in the 1950s. The piece, which includes diamonds, rubies, and sapphires, has a high price of CHF 400,000 ($500,000).
A pair of Graff earrings with octagonal step-cut, fancy-yellow diamond center stones weighing 21.38 and 20.33 carats surrounded by diamonds is estimated at up to CHF 400,000 ($500,000).
This diamond sautoir that Van Cleef & Arpels made in the 1920s has a step-cut diamond weighing 10.79 carats. The lot carries an upper price of CHF 400,000 ($500,000).
A ring with a 4.95-carat Burmese ruby and diamonds has a top estimate of CHF 320,000 ($400,000).
A convertible piece, this lot can be worn as a tiara or a necklace. Created in the second half of the 19th century, it has sapphires and diamonds, and carries a high estimate of CHF 320,000 ($400,000).
Bearing a 20.08-carat Paraiba tourmaline center stone in a diamond surround, this ring is anticipated to go for up to CHF 280,000 ($350,000).
DiamondBuzz
De Beers Sale Could Take 18 Months To Clear Regulatory Hurdles: Duncan Wanblad
The strategic divestment of De Beers highlights the persistent friction between corporate portfolio optimization and multi-jurisdictional regulatory compliance.
The long-awaited sale of De Beers could easily take 18 months to clear regulatory hurdles, says Duncan Wanblad, CEO of parent company Anglo American, once a deal is finally agreed.
Wanblad has, however, insisted that the company is not exclusive with any consortium and that more than one group remains involved in the process.
The strategic divestment of De Beers by Anglo American highlights the persistent friction between corporate portfolio optimization and multi-jurisdictional regulatory compliance.
Initiated in May 2024 as part of a sweeping restructuring, Anglo’s decision to offload its loss-making diamond unit was designed to sharpen capital allocation around core, high-margin assets like copper and iron ore.
However, CEO Duncan Wanblad’s candid assessment underscores a critical transactional reality: securing a signed agreement is merely the precursor to a prolonged regulatory clearance phase.
While Anglo American maintains a target to agree on deal terms by the end of 2026, market expectations regarding transaction completion require re-calibration. Antitrust approvals across key diamond consumption and trading hubs—most notably the United States, China, and the European Union—could extend the execution window by up to 18 months post-signing.
Given De Beers’ historical market concentration and influence across global supply chains, international competition authorities will undoubtedly subject any structural change in ownership to intense scrutiny.
Although the Global Diamond Consortium, spearheaded by former De Beers managing director Gareth Penny, has positioned itself as a primary contender, Anglo American has deliberately avoided granting exclusivity. While maintaining multiple bidding tracks preserves commercial leverage, it delays the precise regulatory preparation required for closing. Formal filings cannot be finalized until the specific jurisdictional footprint and capital background of the acquiring consortium are locked in.
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