Boucheron Paris diamond solitaire dress ring. Set to centre with a round old cut diamond in an open back rubover setting with an approximate weight of 0.75 carats, to a heavy geometric dress ring design featuring symmetrical shapes, polished borders and open backholing, leading to trumpeting shoulders and flowing through to a solid shank. Marked 18 carat yellow gold, signed 'BOUCHERON', maker's mark 'RS', French, circa 1940.
