$48,468,158, Geneva, November 2015
Smashing all records, the Blue Moon Diamond, renamed The Blue Moon of Josephine, sold in November 2015 at Sotheby’s Geneva for over $4 million per carat – the world auction price-per-carat record for a diamond or gemstone.
“After seeing the stone’s colour and understanding its significance, it was fitting to name it the Blue Moon Diamond,” noted Suzette Gomes, CEO of Cora International.
“Not only its shape is reminiscent of a full moon,” she said of the cushion-shaped fancy vivid blue 12.03-carat diamond, “but the metaphor for the expression is exactly what one could say about the occurrence and existence of such a gemstone.”