each inset with a central single old round brilliant cut diamond, within an onyx collet, to a mother-of-pearl ground, the fluted and beaded platinum border with four incurve scrolls, 18ct gold backs and fittings, chains to the links, stamped 'PT' and '18CT'Round panel buttons 1.4cm / 9/16'' diameter
Oval links 1.7cm / 11/16'' long
Studs 0.7cm / 5/16''