The world's largest blue diamond now has a price tag to match its rarity. The 15.10-carat diamond, called "The De Beers Cullinan Blue," sold for $57.5 million Wednesday in an auction at Sotheby ...

the largest vivid blue diamond ever to appear at auction, fetched more than $57.4 million and approximately $3.8 million per carat, making it one of the highest prices ever achieved for a diamond ...

A 12.11-carat fancy intense blue ... “hammer price” of $13.6 million (HK$106 million), which doesn’t include the buyer’s premium. The price per carat was $1.31 million. The diamond was ...

A rare 10-carat Mediterranean blue ... blue diamonds ever discovered, according to sources. Nearly $23 billion worth of rough stone was traded in 2021. In 2023, over $38 billion in the value ...

Botswana has unveiled a blue diamond whose value could outstrip that of the storied Hope Diamond: the 20.46-carat, close-to-flawless Okavango Blue. The diamond was presented in Gaborone ...

In a statement Tuesday, Petra Diamonds said the newly discovered gem “is a vivid blue with extraordinary tone and clarity, and could yield a polished stone of great value.” Experts will likely ...