Antique diamond openwork pendeloque cluster ring

Antique diamond openwork pendeloque cluster ring in platinum and 18kt yellow gold. Centrally set with four round Old European cut diamonds in floating platinum millegrain settings, framed by a row of rose and Old European cut diamonds in platinum millegrain settings, to an elegant openwork cluster design featuring negative spacing, scalloped edging and flanked to either side with split diamond set shoulders which terminate to a solid shank. Marked platinum and 18kt gold.