house in geneva the gem was cut down from an even bigger rough diamond found last year in a mine in angola. if size matters this bling takes top prize even auction house christie's doesn't come across many rocks with these dimensions at one hundred sixty three carat this is the largest the flawless that's ever been offered for sale. for someone that's thinking about this outside of the diamond world how do you comprehend the size well it's the size of a matchbox now think about that a matchbox that's a diamond that's the color perfect in color white as can be called blue flawless he's never been seen before uncut the giant diamond way to stunning four hundred four carrots making it the twenty seventh largest ever found italian celebrity jewel of ours grows he needed one thousand seven hundred hours of concentrated work to fashion it into creation one