Famous French diamond sells for $15million at auction

An emerald and diamond necklace set with the largest flawless white diamond ever to come to auction has sold for a world record 33.5 million Swiss francs ($34 million), the star lot at a Geneva sale, Christie's said. The necklace, known as the Art of de GRISOGONO, Creation 1, has a rectangular diamond weighing 163.41 carats as its centrepiece. The buyer, bidding by telephone at Tuesday night's sale, will remain anonymous, Christie's said in a statement.