Centering a bezel set, round Moonstone cabochon measuring 5.70 x 5.75 x 3.88mm, with an approx. weight of 0.91ct; framed by nine Old Mine cut diamonds, with a combined approx. weight of 0.12ctw; along with nine French Star cut sapphires* with an approx. combined weight of 0.18ctw. Fashioned in platinum and 18k yellow gold. Circa 1915. Size 5.5.
*Stones are assumed to be simulants or synthetic as was typical in jewelry of this style/era.