Add Yahoo as a preferred source to see more of our stories on Google. Audrey Hepburn made one of Tiffany & Co.'s most expensive pieces of jewelry famous by wearing it in a promotional shoot for ...

GENEVA (AP) — A blue diamond weighing nearly 10 carats has sold at auction in Switzerland for 20.5 million Swiss francs ($25.6 million) including fees. The pear-shaped 9.51-carat “Mellon Blue” — named ...

A Sotheby's employee displays a green beryl, over 132 carats, which Napoleon was said to have worn at his 1804 coronation, during a preview at Sotheby's in Geneva, Switzerland, Thursday Nov. 6, 2025.

GENEVA (AP) — A blue diamond weighing nearly 10 carats has sold at auction in Switzerland for 20.5 million Swiss francs ($25.6 million) including fees. The pear-shaped 9.51-carat “Mellon Blue” — named ...