A decade later, he appointed Mauboussin as his official jeweler and had the stone remounted in a necklace worn ... for the most expensive blue diamond to sell at auction was the 15.10-carat ...

Christie’s has announced what is sure to be a blockbuster sale in the jewelry world: the sale of a 23.24-carat fancy Golconda blue diamond. It is the largest of its kind to ever be offered at auction ...

By the 1930s, the blue diamond was reset into a breathtaking necklace by Mauboussin, the Maharaja’s chosen jeweler. ALSO SEE: Chinese Collector Buys Banana Taped To A Wall For ₹52 Crore At Auction, ...

Ahead of a Sotheby’s auction ... diamond known to exist and several diamonds over 100 carats,” Sotheby’s auction house said in a statement. The chiseled stones were on display next to lavish jewellery ...