Ring Size Guide

Have your eye on the perfect ring, but not sure about your size? Simply check your jewelry box for a ring that fits or borrow one of a friend and measure the inside diameter at the widest point of the ring with a ruler.

Arrows showing the inside diameter of a ring for measuring it's fitting size

Next, consult our sizing table below to determine your ring size.

Inside Diameter Inside Circumference Sizes
mm mm Australia & UK
14.36 45.11 G
14.45 45.40 G 1/4
14.56 45.74 G 1/2
14.65 46.02 H
14.86 46.68 H 1/2
15.04 47.25 I
15.27 47.97 I 1/2
15.40 48.38 J
15.53 48.79 J 1/4
15.70 49.32 J 1/2
15.80 49.64 K
15.90 49.95 K 1/4
16.00 50.27 K 1/2
16.10 50.58 L
16.30 51.21 L 1/4
16.41 51.55 L 1/2
16.51 51.87 M
16.71 52.50 M 1/2
16.92 53.16 N
17.13 53.82 N 1/2
17.35 54.51 O
17.45 54.82 O 1/2
17.75 55.76 P
17.97 56.45 P 1/2
18.19 57.15 Q
18.35 57.65 Q 1/2
18.53 58.21 Q 3/4
18.61 58.47 R
18.69 58.72 R 1/4
18.80 59.06 R 1/2
18.89 59.34 R 3/4
19.10 60.00 S
19.22 60.38 S 1/4
19.31 60.66 S 1/2
19.41 60.98 S 3/4
19.51 61.29 T
19.62 61.64 T 1/4
19.84 62.33 T 1/2
20.02 62.89 U
20.20 63.46 U 1/2
20.32 63.84 V
20.44 64.21 V 1/4
20.68 64.97 V 1/2
20.76 65.22 W
20.85 65.50 W 1/4
20.94 65.78 W 1/2
21.08 66.22 W 3/4
21.18 66.54 X
21.24 66.73 X 1/4
21.30 66.92 X 1/2
21.49 67.51 Y
21.69 68.14 Y 1/2
21.89 68.77 Z
22.10 69.43 Z +1/2
22.33 70.15 Z+1
22.60 71.00 Z+1.5


Once you know your perfect fit just add the size into the notes in the order and we will resize it for free if the ring is within 3 sizes. If we are upsizing a ring by more than 3 sizes we may contact you to talk about the value of precious metals required to complete the resizing.