DiamondBuzz
De Beers extends sightholder contract by six months
De Beers is giving its sightholders more breathing room, stretching the current supply agreement until June 30, 2026. The move, announced Friday, comes as the diamond industry weathers turbulence from shifting US tariffs and broader global uncertainty.
The extension delays De Beers’ plans to trim its sightholder roster from the present 69 and pushes back the rollout of its next supply framework. Customers will receive formal “extension letters” in Q4.
De Beers typically holds 10 sights annually in Gaborone, Botswana, where sightholders commit to buying set allocations of rough in exchange for reliable supply. For now, the miner is holding off major structural changes.
The extension also coincides with mounting interest from Botswana and Angola, both exploring stakes in De Beers — though the company cites only “external conditions” as the official reason for the pause.
There are approximately 53 international Sightholders currently buying rough diamonds from De Beers’ Global Sightholder Sales (GSS), plus 40 sightholders in Botswana and 14 in Namibia, but many companies are sightholders in multiple location. The likely total is around 60.
DiamondBuzz
Sotheby’s Withdraws Rare 10-Carat Pink Diamond from Geneva High Jewelry Auction
The $20 million ‘Glowing Rose’ was expected to lead the sale but was removed after discussions with the consignor.
Sotheby’s has withdrawn a rare 10.08-carat fancy-vivid-pink diamond from its High Jewelry auction in Geneva, where it was estimated to fetch around $20 million. The Glowing Rose—a cushion brilliant-cut pink diamond set in a ring—was slated to be the star lot of the November 12 sale but never reached the auction block. The company did not disclose the reason for the withdrawal.
“The Glowing Rose is an absolutely beautiful pink diamond… however, following discussions with the consignor, the lot was withdrawn prior to the sale,” a Sotheby’s spokesperson told. The stone is notable as only the third cushion-cut vivid-pink diamond to appear at auction in the past decade and was showcased in Singapore and Taipei last month in a presentation mount by British jeweler Boodles.
Despite the withdrawal, the High Jewelry sale achieved CHF 29.8 million ($37 million), led by a 4.50-carat fancy-vivid-blue, internally flawless diamond that sold for CHF 4.8 million ($6 million). The event ran parallel to Sotheby’s Royal & Noble Jewels auction in Geneva.
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Sotheby’s Withdraws Rare 10-Carat Pink Diamond from Geneva High Jewelry Auction
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