I bepeve this ring is vintage.
18ct Yellow and White Gold Diamond Ring.
Central Diamond Diameter: 3.55mm
Diamond Weight: 0.17cts Approx
Ring Face Weight: 5.10mm
Ring Setting Height: 4.7mm
Ring Weight: 2.9 grams
Ring Size: M
Resizing Service Offered at Small Cost
Note: Antique or vintage rings may have wear associated with the items age.