Ring with diamonds totaling approx. 0.7 ct,

Ring with brilliant-cut diamonds totalling ca. 0.7 ct, of which 2x ca. 0.15 ct and 20x ca. 0.02 ct, good colour and clarity, 18K white gold, 4.3 g, ring size 49, 2nd half of 20th century, minor signs of wear, unknown maker's mark.