An amethyst and diamond 'Parisienne' bangle, by Roberto Coin, with a circular cut amethyst flanked by a round brilliant cut diamond to either side, claw set to a plain bar, tapering gently to a hinge with concealed box clasp, with ruby button and riveted safety catch. Signature round cut ruby to the underside, 54mm x 48mm, stamped Italy 18Kt, Italian official national mark for Vicenza. In a Roberto Coin pouch and case, 19.15g Condition Report: Clasp secures. Minor marks and scratches to surfaces.