Ring mit feinem Tansanit entouriert von Brillanten

Ring with fine oval tanzanite 14x9 mm, ca. 6.5 ct, surrounded by brilliant-cut diamonds totalling ca. 0.7 ct, good colour and clarity, 18K white gold, 8.2 g, ring size 60 (enlarged), 2nd half of 20th century, tanzanite with signs of wear, otherwise in good condition, marked 'TB'.