A nearly 10-carat blue diamond was sold at an auction in Switzerland on Tuesday for 20.5 million Swiss francs ($26.6 million).
The diamond, weighing 9.51 carats, is named “Mellon Blue” after the late American arts patron Rachel “Bunny” Mellon.
A nearly 10-carat blue diamond was sold at an auction in Switzerland on Tuesday for 20.5 million Swiss francs ($26.6 million).
The diamond, weighing 9.51 carats, is named “Mellon Blue” after the late American arts patron Rachel “Bunny” Mellon.