Art decodiamond ring. Set to center with a round old cut diamond in an open backrubover setting with an approximate weight of 0.40 carats, to a stylised solitaire design featuring rectangular bezel, polished edges and rectangular open backholing, flanked by trumpting shoulders leading to a solid tapering flat shank. Markedplatinum, French control marks, circa 1920.
Art deco diamond ring. Set to center with a round old cut diamond in an open back rubover setting with an approximate weight of 0.40 carats, to a stylised solitaire design featuring rectangular bezel, polished edges and rectangular open backholing, flanked by trumpting shoulders leading to a solid tapering flat shank. Marked platinum, French control marks, circa 1920.