If 'The Golconda Blue' went to auction it would have been the largest fancy blue diamond to have been presented at a public ...

Christie's is getting ready to present The Golconda Blue, the largest Fancy Vivid Blue Diamond ever to be offered at auction.

the Golconda Blue is truly one of the rarest blue diamonds in the world.” By comparison, the 35.56-carat fancy deep grayish-blue Wittelsbach sold for $24.3 million in 2008, the 76.02-carat D ...