Mellon Blue diamond sells for $25.6 million
By AFP Published November 11, 2025 The Mellon Blue, a 9.51-carat fancy vivid blue diamond formerly owned by the US art collector Bunny Mellon, sold for $25.6 million at auction on Tuesday. Christie’s is a global auction business – Shutterstock. The diamond was sold by auctioneers Christie’s in Geneva as part of its Magnificent Jewels…


