Ring with opal surrounded by octagonal diamonds totaling approx. 0.4 ct,

Ring with oval opal surrounded by single-cut diamonds totalling ca. 0.4 ct, good colour and clarity, opal with chip at side/bottom, min. fracture and signs of wear at surface, 18K white gold, 7.8 g, ring size 55, 2nd half of 20th century, signs of wear.