Diamond cocktail ring. Set with a round old cut diamond in an open back grain setting with an approximate weight of 0.75 carats, further enhanced by fifteen round eight cut diamonds in open back grain settings with a combined weight of 0.50 carats. The total approximate diamond weight is 1.25 carats, to a structured asymmetrical cluster ring with a closed gallery and pierced geometric backholing, leading to broad shoulders with ridged detail and flowing through to a solid D-shape shank. Marked platinum, indistinct maker's mark, French, circa 1945.
