{"id":10364,"date":"2025-11-12T03:13:27","date_gmt":"2025-11-12T03:13:27","guid":{"rendered":"https:\/\/jobuzo.com\/en\/rare-9-51-carat-mellon-blue-diamond-fetches-25-6-million-at-christies\/"},"modified":"2025-11-12T03:13:27","modified_gmt":"2025-11-12T03:13:27","slug":"rare-9-51-carat-mellon-blue-diamond-fetches-25-6-million-at-christies","status":"publish","type":"post","link":"https:\/\/jobuzo.com\/en\/rare-9-51-carat-mellon-blue-diamond-fetches-25-6-million-at-christies\/","title":{"rendered":"Rare 9.51-carat Mellon Blue diamond fetches $25.6 million at Christie\u2019s"},"content":{"rendered":"
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A model wears a ring set with the Mellon Blue, a 9.51-carat Fancy Vivid Blue diamond graded Internally Flawless and estimated at $20-30 million, during an auction preview at Christie’s in Geneva, Switzerland, November 7, 2025. — Reuters<\/figcaption><\/figure>\n<\/div>\n

The Mellon Blue, a 9.51-carat fancy vivid blue diamond that once belonged to US art collector Bunny Mellon, sold for $25.6 million at auction on Tuesday.<\/p>\n

The diamond was sold by auctioneers Christie’s in Geneva as part of its Magnificent Jewels sale in the Swiss city.<\/p>\n

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The gem sold for 20,525,000 Swiss francs at the Hotel des Bergues, having been estimated to fetch between 16 and 24 million francs.<\/p>\n

Rahul Kadakia, who conducted the sale, said the price was evidence of the “elite appetite amongst collectors for extraordinary and storied gems”.<\/p>\n

The stone, set in a serpentine ring, once belonged to Rachel Lambert Mellon, better known as Bunny Mellon, a US horticulturalist, philanthropist and art collector.<\/p>\n

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“The Mellon Blue is an outstanding stone,” said Max Fawcett, head of jewellery at Christie’s in Geneva.<\/p>\n

“More than that, though, it has also become symbolic of a lifestyle of a bygone era — the type only possible with a Gilded Age fortune.”<\/p>\n

The brilliant-cut stone is graded as internally flawless.<\/p>\n

The diamond was last seen publicly in 2014, when it was auctioned in New York after her death at the age of 103, selling for more than $32 million.<\/p>\n

Tobias Kormind, managing director of Europe’s largest online diamond jeweller 77 Diamonds, said in a statement that he was expecting the gem to go for a higher price on Tuesday.<\/p>\n

“Geopolitical tensions… and a weakened Chinese economy that kept many usual buyers away, left the room distinctly cautious,” he said.<\/p>\n

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“Whether this restraint will ripple through the rest of the Geneva season remains to be seen.”<\/p>\n

Sotheby’s is holding its annual Royal and Noble Jewels sale in Geneva on Wednesday.<\/p>\n

A brooch seized from Napoleon Bonaparte as he fled the Battle of Waterloo in 1815, laden with old mine-cut diamonds, has been valued at $150,000 to $250,000.<\/p>\n

Also going under the hammer is a 10.08-carat vivid pink diamond, named “The Glowing Rose”, which is expected to rake in around $20 million.<\/p>\n

The gem “of exceptional quality” was named after its “extremely rare” luminous and pure pink colour, Sotheby’s said.<\/p>\n<\/div>\n

Rare 9.51-carat Mellon Blue diamond fetches $25.6 million at Christie’s<\/sub><\/p>\n","protected":false},"excerpt":{"rendered":"

A model wears a ring set with the Mellon Blue, a 9.51-carat Fancy Vivid Blue diamond graded Internally Flawless and estimated at $20-30 million, during an auction preview at Christie’s in Geneva, Switzerland, November 7, 2025. — Reuters The Mellon Blue, a 9.51-carat fancy vivid blue diamond that once belonged to US art collector Bunny…<\/p>\n

Read More “Rare 9.51-carat Mellon Blue diamond fetches $25.6 million at Christie\u2019s”<\/span> »<\/a><\/p>\n","protected":false},"author":1,"featured_media":10365,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-10364","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"_links":{"self":[{"href":"https:\/\/jobuzo.com\/en\/wp-json\/wp\/v2\/posts\/10364","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jobuzo.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jobuzo.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jobuzo.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jobuzo.com\/en\/wp-json\/wp\/v2\/comments?post=10364"}],"version-history":[{"count":0,"href":"https:\/\/jobuzo.com\/en\/wp-json\/wp\/v2\/posts\/10364\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jobuzo.com\/en\/wp-json\/wp\/v2\/media\/10365"}],"wp:attachment":[{"href":"https:\/\/jobuzo.com\/en\/wp-json\/wp\/v2\/media?parent=10364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jobuzo.com\/en\/wp-json\/wp\/v2\/categories?post=10364"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jobuzo.com\/en\/wp-json\/wp\/v2\/tags?post=10364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}