18ct tri-colour gold and diamond 'Trinity' necklace, Cartier composed of a line of alternating large and small annular links decorated to the centre with three interlaced annular hoops one of which is pave-set with brilliant-cut diamonds, suspending a similar series of links, terminating in three larger interlaced annular hoops one of which is pave-set with brilliant-cut diamonds, inner circumference approximately 445 mm, signed Cartier, maker's marks, numbered 47920F.