Ring with central brilliant-cut diamond of approx. 0.7 ct,

Ring with central brilliant-cut diamond ca. 0.7 ct, ca. WHITE (H)/VVS and further brilliant-cut diamonds totalling ca. 0.6 ct, medium colour and clarity, 18K yellow gold, 6.5 g, ring size 52, upper part is blackened, 20th/21st century, signs of wear.