A DIAMOND DRESS RING, FRENCH, CIRCA 1960 Of openwork domed design, the central old brilliant-cut diamond weighing approximately 1.85ct, within an eight-claw setting, within a brilliant-cut diamond surround accented with square-cut diamonds, to a multifurcated hoop with ropetwist detailing, mounted in platinum, remaining diamonds approximately 1.80ct total, indistinct maker's mark, French assay mark, ring size K