This is a listing for 925 Sterling Silver Moon Phases Ring

Available in 7 sizes.

6(US) = L½ (UK) = 16.39mm

7(US) = N½ (UK) = 17.19mm

8(US) = P½ (UK) = 18.00mm

9(US) = R½ (UK) = 18.80mm

10(US) = T½ (UK) = 19.60mm

11(US) = V½ (UK) = 20.40mm

12(US) = X½ (UK) = 21.20mm