Ring Sizing Chart

When it comes to Diamond Engagement Rings and Wedding Rings, one thing is for sure: SIZE MATTERS!
Use the RING SIZING CHART or our APPLICATION at the bottom of this page to find your ring size.

Taking Correct Measurement

All our rings are measured and standardized with a new Wheatsheaf measuring stick. The reading is taken as centre, with a tolerance of one quarter of a size. If you have your finger measured by a jeweller, always check if the size is centre, leading edge or trailing edge. Please note that half-sizes are also possible.

South African, UK and American Ring Sizing Chart

There is no substitute for having your finger measured professionally, but it’s not an exact science. Our fingers change in size from morning to evening, month to month and even Winter to Summer. The following chart is helpful to see how sizes compare internationally.

SA & UK:

Diameter mm

Circumference mm

American

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
Z+1 22.3 69.99
Z+2 22.7 71.31
Z+3 23.1 72.57
Z+4 23.5 73.83
Z+5 23.9 75.08
Z+6 24.3 76.34
Z+7 24.7 77.60
Z+8 25.1 78.86

Use our app to find the correct size of your finger.

*This application can be used with desktop computers only.

Find Your Ring Size