Ring with rosette of 1 ruby surrounded by diamonds totaling approx. 0.72 ct

Ring with rosette made of 1 round faceted ruby surrounded by 6 brilliant-cut diamonds totalling ca. 0.72 ct, ca. STW-TIW (J-K)/VS, 18K yellow and white gold, 8.9 g, ring size 61, slightly oval, because of maximizing, 2nd half of 20th century, minor signs of wear, with official Italien mark.