Tiffany presents World’s Fair, its most expensive jewel worth $ 30 million, a precious 180-carat diamond necklace all set in platinum. At the center of the necklace is an 80-carat oval stone and a sparkling inner diamond that Tiffany has christened as ‘The Empire Diamond’, named after the New York icon. It is the most valuable jewel after the famous 128.54 carat ‘Tiffany Diamond’, not for sale and whose value has been quantified by the maison as “priceless”.