For information about how to find out your ring size, check out our handy guide!


The One Ring in 18K Gold can be ordered in the following sizes:







































































































































































UK Diameter mm Circumference mm US
A 11.5 36.25 0.5
B 12.3 38.64 1
C 12.7 39.90 1.5
D 13.1 41.15 2
E 13.5 42.41 2.5
F 13.9 43.67 3
G 14.3 44.92 3.25
H 14.7 46.18 3.75
I 15.1 47.44 4.25
J 15.5 48.69 4.75
K 15.9 49.95 5.25
L 16.3 51.24 5.75
M 16.7 52.46 6.25
N 17.1 53.72 6.75
O 17.5 54.98 7
P 17.9 56.23 7.5
Q 18.3 57.49 8
R 18.7 58.75 8.5
S 19.1 60.00 9
T 19.5 61.26 9.5
U 19.9 62.52 10
V 20.3 63.77 10.5
W 20.7 65.00 11
X 21.1 66.29 11.5
Y 21.5 67.51 12
Z 21.9 68.77 12.5