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The Williamson Pink Start diamond is now the most expensive diamond ever sold per carat. It sold Friday at $57.73 million.

A rare gem, named the Eternal Pink Diamond for its vivid purplish pink appearance, could sell for $35 million when Sotheby's auctions it off in June.

From Gwen Stefani's $500,000 sparkler to Mariah Carey's 35-carat emerald-cut diamond, here are the most expensive celebrity engagement rings ever.

An exceptionally rare blue gem became one of the most expensive diamonds sold by Christie’s when it went under the hammer in Geneva on Tuesday. An unidentified buyer paid CHF 39,505 million (US ...

Victoria Beckham has received 15 engagement rings from David Beckham since his 1998 proposal. Take a closer look at all her ...

Her ring from footballer husband Russel Wilson is a staggering 16-carat round brilliant-cut diamond flanked by two trapezoid-shaped diamonds and two pear-shaped diamonds. The price tag?

Geneva — An exceptionally rare blue diamond went under the hammer in Geneva Tuesday, selling for almost $44 million, making it one of the most expensive diamonds ever sold at auction, Christie's ...

Celebrity engagement rings continue to fascinate fans by the sheer size and cost of these tokens of love. But who's worn the most expensive?