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Ring Sizing Chart

Circumference (mm) Diameter (mm) Lunera Size (US)

AU / UK

49 15.5  5 J 1/2 
50 16 5.5 K 1/2

51

16.5  6 L 1/2
53 16.9 6.5 M 1/2
54  17.3

7

N 1/2 - O 1/2
55 17.7 7.5
56  18

8

P - Q 1/2
58 18.5 8.5
59 19 9

R - T

60 19.5 9.5 S 1/2
61 - 62 20 10 T 1/2 
63 20.5 10.5 U 1/2
64 - 65 21 11 V 1/2 - X
66 - 68 21.5 12 X 1/2 - Y 1/2
69 - 70 22 - 22.5 13 Z - Z1/2

 

Lunera's tip to measure your ring size

Cut a strip of paper of the approximate width of the ring you're interested in.
Wrap the strip around the finger, ensuring that it is comfortable and can slide on and off but is not too loose that it will fall off, and draw a line.
Measure the length of the strip to the line mark you've made to get the circumference of the ring and compare to the size chart to find your perfect size! 

If you're struggling to figure out your size or have any special inquiries, please do not hesitate to contact me.