Antique emerald and diamond twist bangle

Victorian Old Mine cut diamond and emerald two stone twist hinged bangle in 18kt yellow gold. A hinged bangle with a square profile fitted to the front with two cushion shape Old Mine cut diamonds in claw settings, centred with a round mixed cut emerald in a claw setting, twisting to top and bottom with channel and grain set alternating round old cut diamonds and cushion shape mixed cut emeralds, secured with a push clasp mechanism and safety chain.