Solitaire ring with brilliant-cut diamond of approx. 1.02 ct,

Solitaire ring with brilliant-cut diamond ca. 1.02 ct, ca. WHITE (H)/SI1, 2 naturals at girdle, 18K white gold, 5.3 g, ring size 55.5, 2nd half of 20th century, very good condition, engraved 8293/0020 including jewellers certificate.