【Geneva, Swit】Mellon Blue Diamond Sells for $26.6 Million at Auction in Switzerland
Editor’s NoteThis article reports on the sale of a rare 9.51-carat blue diamond for 20.5 million Swiss francs at Christie’s Geneva, highlighting the…
Editor’s NoteThis article reports on the sale of a rare 9.51-carat blue diamond for 20.5 million Swiss francs at Christie’s Geneva, highlighting the…