a cushion cut diamond claw set to the middle, to the back a yellow enamel finish, mounted in gold, hinged pendant loop, signed 'TIFFANY & CO', Width 3.4cm / 1�'' Weight: 12.5g
19th century nine stone vari-colour gem brooch, c.1830, of oval form, central sapphire to a surround including sapphire, ruby, catseye, hessonite garnet, aquamarine and amethyst,
Late 19th century / early 20th century 'Noeud Louis XVI' diamond openwork ribbon bow brooch by Cartier, Paris c.1902, the loops and ribbon ends centred by alternating single stone and quatrefoil clusters,