18ct gold and diamond pendant necklace, Tiffany & Co., modelled as a heart, invisibly-set with princess-cut diamonds, surmounted by a brilliant-cut diamond set articulated toggle, supported from a fine trace chain, the diamonds together weighing approximately 1.17 carats, pendant approximately 17.5 x 14 mm, chain circumference approximately 460 mm, signed T & Co for Tiffany & Co.