A yellow sapphire and diamond necklace. Photo Christie's Image Ltd 2013

 Designed as a series of cushion and rectangular-cut yellow sapphires, spaced by circular-cut diamond and sculpted gold links, mounted in gold and platinum, 14½ ins. Estimate:  $20,000 – $30,000

Christie's. NEW YORK MAGNIFICENT JEWELS AND THE PRINCIE DIAMOND. 16 April 2013. New York, Rockefeller Plaza.