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Mellon Blue diamond ring sells for $32.5m in Geneva auction: The vivid blue gem once belonged to philanthropist Rachel “Bunny” Mellon, a close friend of Jackie ...
straitstimes.com/world/europe/mellon-blue-diamond-ring-sells-for-32m-in-geneva-auction
Mellon Blue diamond ring sells for $32.5m in Geneva auction
‘Gem of gems’ sells for $7 million less than its price a decade ago: The pear-shaped 9.51-carat “Mellon Blue” — named for the late American arts patron Rachel ...
oregonlive.com/business/2025/11/gem-of-gems-auctions-for-7-million-less-than-a-decade-ago.html
‘Gem of gems’ sells for $7 million less than its price a decade ago