A stunning ring inspired by a mint lake. We hope that it will also add a touch of fairy spirit to you when you wear this ring. Material S925 Silver Size Adjustable opening For 12-18 (Hong Kong Size) Inter- Diameter (mm) Hong Kong Size American Size United Kingdom Size Japan Size Switzerland Size 14.1 6 3 F 4 4 14.3 7 3.25 F 1/2 5 5.25 14.7 8 3.75 G 6 6.5 14.9 9 4 H 7 7 15.3 10 4.5 I 8 8.5 15.7 11 5 J 1/2 9 9.5 16.1 12 5.5 K 1/2 10 10.5 16.5 13 6 L 1/2 11 12.75 16.7 14 6.25 M 12 13.5 17.1 15 6.75 N 13.5 14.5 17.3 16 7 N 1/2 14 15.25 17.7 17 7.5 O 1/2 15 16.5 18.2 18 8 P 1/2 16.25 18.25 18.5 19 8.5 Q 1/2 17 18.75 18.8 20 9.75 R 17.5 19 19.1 21 9.25 S 18 20 19.4 22 9.5 S 1/2 19 20.75 19.8 23 10 T 1/2 20 21.75 20.2 24 10.5 U 1/2 22 22.75 20.6 25 11 V 1/2 23 24.75 21 26 11.5 W 1/2 24 26.25 21.2 27 12 X 24.5 26.75 21.6 28 12.25 Y 25.5 28 22 29 12.5 Z 1/2 26.5 29 Measure Your Ring Size With These Steps Wrap string or paper around the base of your finger. Mark the point where the ends meet with a pen. Measure the string or paper with a ruler (mm) then divide by 3.14 (or Pi) to get the diameter of the ring. Pick the closest measurement on the ring size chart to find your ring size. How will I know I have the right size? The right ring size will feel snug enough to stay on your finger but loose enough to slide over your knuckle.