Tiffany & Co., a collection of jewellery

Tiffany & Co., a collection of jewellery, comprising: Elsa Peretti for Tiffany & Co., a diamond and platinum 'Diamonds by the Yard' necklace, centred with a collet-set round brilliant-cut diamond to a fine link chain, signed Peretti and Tiffany & Co, stamped Pt950, chain length 42cm, case stamped Tiffany & Co; Tiffany & Co., a diamond and platinum 'Jazz' ring, formed of three bands of diamond-set circular and navette-shaped plaques, signed ©T&Co, stamped Pt950, size N 1/2, case stamped Tiffany & Co; Paloma Picasso for Tiffany & Co., an 18ct gold 'Olive Leaf' pendant necklace, the foliate pendant to a fine link chain, signed ©Paloma Picasso and T&Co, London hallmarks, stamped Au750, pendant length 2.5cm, chain length 45.5cm, pouch stamped Tiffany & Co; and Tiffany & Co., a pair of silver collar stiffeners, signed Tiffany, Birmingham hallmarks, length 6.3cm, pouch