Diamond cocktail ring. Set to centre with a round old cut diamond in open back grain settings with an approximate weight of 0.36 carats. To an impressive cocktail ring with concentric stepped details, polished edges and circular open backholing, leading to broad integrated shoulders featuring raised metalwork motifs and flowing through to a tapering angular shank. Marked 18 carat yellow gold and tested platinum, indistinct makers mark, French, circa 1950.
