‘Mellon Blue’ diamond sells for $25.6 million at Swiss auction
- Posted on November 11, 2025
- By The Toronto Star
- 1 Views
‘Mellon Blue’ diamond sells for $25.6 million at Swiss auction
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.
