Ring Sizes - Help and Information


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Please use the following information to decide on the correct ring size. We provide clear and helpful guidance by phone or email should you need additional guidance before making your purchase.  


You might look upon the size-stick photograph below as a strange thing for us to include, but this gives you clear photographic evidence of differences between UK and US ring size. Rings are dropped onto the size-stick and size is read along the leading edge where the ring rests. 

Arranging Your Free Sizer

You will notice that all of the rings on our website feature a button to order your free UK ring sizer which we send out by UK or International post immediately for you followed by our confirmation email. 




US - UK Finger Size Conversion

Owing to our website showing UK finger sizes, please feel free to look at the size stick which shows UK equivalents to US sizes. We have included this due to the variation of opinion between many conversion charts. If there is no clear equivalent size – contact us – we will be happy to work to the US finger size when we create your ring.  




Free Advice - Call or Email

Please scroll down for a full size conversion chart.

Please keep in mind that some ring designs cannot be re-sized for a variety of reasons. Full eternity rings are the most obvious example of rings that cannot be adjusted by size. Engagement rings with tension style settings are unsuitable for significant size alterations. Claw settings are the most popular style purchased with any uncertainty about finger size. Following size adjustments, claws or prongs can be re-tensioned around the diamond to ensure security for the stone. If you are uncertain about finger size, please feel free to contact us at any time for additional guidance. 




Guidance on Typical Finger Sizes

To give you a better idea of how different sizes compare, the following information assigns groups of sizes to small, medium and large finger sizes. If you are unable to take a specific size reading, this information might help you select a size that will be close to the correct finger size. Your ring will likely need less of an adjustment following purchase. We can help with any size adjustments in the future, after purchase. 


  • Sizes G - I Very small sizes
  • Sizes J - K Typical for smaller hands
  • Sizes L - N Mid / average sizes
  • Sizes O - P Slightly larger sizes
  • Sizes Q - T Larger finger sizes
  • Sizes T - Z Very large sizes




Ring Size Charts

The ring size chart below gives some guidance on conversion. Please remember that we can work to in-between finger sizes. Our website allows a full or half size to be chosen. By contacting us before or after placing your order, we can apply further increments. For example you might need size L and a quarter (quarter of a size larger than L) In this instance a size L and a quarter is equivalent to a US size 6. This is no problem to apply if you contact us before or after placing your order. 




Help I have no idea!

If you really have no idea on your partner's finger size, please look at the guidance notes above (4th Paragraph) and we can choose a suitable 'guesstimate' to make the ring. Since we provide a free ring size adjustment, making an alteration will be no problem.

American British European Inside Diameter (mm)
A 12.065
38 12.096
12.263
1 12.344
39 12.344
B 12.459
12.657
40 12.733
12.751
C 12.852
41 13.051
2 13.157
D 13.246
42 13.369
13.444
13.564
E 13.640
43 13.687
13.838
3 13.970
44 14.006
F 14.034
14.232
45 14.324
14.376
G 14.427
14.625
46 14.642
4 14.783
H 14.821
47 14.961
15.019
15.189
I 15.215
48 15.279
15.413
5 49 15.597
J 15.608
15.806
50 15.916
K 16.002
16.200
51 16.234
6 L 16.396
52 16.552
16.594
M 16.789
16.815
53 16.871
16.988
N 17.183
54 17.189
7 17.221
17.381
55 17.507
O 17.577
17.628
17.775
56 17.826
P 17.971
8 18.034
57 18.144
18.169
Q 18.364
18.453
58 18.462
18.562
R 18.758
59 18.780
9 18.872
18.956
60 19.098
S 19.152
60 19.098
19.279
19.350
61 19.416
T 19.545
19.741
10 19.761
U 19.939
63 20.054
20.137
10½ 20.168
V 20.333
64 20.372
20.531
11 20.599
65 20.690
W 20.726
20.925
11½ 66 21.008
X 21.120
21.318
67 21.326
12 21.412
Y 21.514
68 21.645
21.712
12½ 21.819
Z 21.908
69 21.963
22.106
13 22.252
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