The Feathered Cloak medallion, Multi-Stone, Diamond, Platinum, Gold Necklace, Francesca Amfitheatrof for Tiffany & Co. spessartine garnet weighing 11.44 carats, enhanced by round-cut aquamarine, accented by full, marquise and baguette-cut diamonds , complemented by round-cut multi-color sapphires, set in platinum and 18k gold. Heritage Auctions logo America's Auction House