Centering a row of vertically set Single cut diamonds weighing app. 0.10ctw., flanked by two rows of Rose cut diamonds measuring app. 1.0mm and all framed by calibre cut rubies* measuring app. 1.0mm, fashioned in 18k and platinum. French Hallmarks. Circa 1915. Size 6. *Stones are assumed to be simulants or synthetic as was typical in jewelry of this style/era.