Coming from the same quarries from which the world famous Kohinoor diamond and Blue hop the diamond had broken all previous record for selling of a pure diamond.

“The Archduke Joseph Diamond of 76.02 carats sold for $21.5 million, a world record price per carat for a colourless diamond. The historical gem led Christie's jewellery auction which totalled $85 million,” François Curiel, president of Christie’s Switzerland and international director of Christie’s jewellery department, said.