Ring siZe Guide

I know the finger size 

If this is the case then please select the correct size from the drop down on the ordering page. The size options are from the ‘British’ system – if you are using another system then please consult the table below to determine the size to select. We may have to charge for resizing a ring. Please contact us if you need some assistance.

I don’t know the finger size 

If this is the case, then please select any option from the finger size drop down but add a message to the order or contact us after and state that you need to discuss the finger size. Once your order has been confirmed we will contact you about how we can ascertain the correct size. This can be done in a number of ways including sending samples and we will be happy to help you with this.

Ring Size Conversion Table

Diameter
(inside mm)

Circumference
(inside mm)

UK, Ireland, Australia

US & Canada

Japan

Swiss

14.1

44.2

F

3

4

4.00

14.3

44.8

F 1/2

3 1/4

5

5.25

14.5

45.5

G

3 1/2

 

 

14.7

46.1

G 1/2

3 3/4

6

6.50

14.9

46.7

4

7

 

15.1

47.4

H 1/2

4 1/4

 

7.75

15.3

48.0

4 1/2

8

 

15.5

48.7

J

4 3/4

 

9.00

15.7

49.3

J 1/2

5

9

 

15.9

49.9

K

5 1/4

 

10.00

16.1

50.6

K 1/2

5 1/2

10

 

16.3

51.2

L

5 3/4

 

11.75

16.5

51.8

L 1/2

6

11

12.75

16.7

52.5

6 1/4

12

 

16.9

53.1

M 1/2

6 1/2

13

14.00

17.1

53.8

N

6 3/4

 

 

17.3

54.4

N 1/2

7

14

15.25

17.5

55.0

7 1/4

 

 

17.7

55.7

O 1/2

7 1/2

15

16.50

17.9

56.3

7 3/4

 

 

18.1

56.9

P 1/2

8

16

17.75

18.3

57.6

8 1/4

 

 

18.5

58.2

Q 1/2

8 1/2

17

 

18.7

58.9

R

8 3/4

 

19

18.9

59.5

R 1/2

9

18

 

19.2

60.1

S

9 1/4

 

20.25

19.4

60.8

S 1/2

9 1/2

19

 

19.6

61.4

T

9 3/4

 

21.5

19.8

62.1

T 1/2

10

20

 

20.0

62.7

U

10 1/4

21

 

20.2

63.3

U 1/2

10 1/2

22

22.75

20.4

64.0

V

10 3/4

 

 

20.6

64.6

V 1/2

11

23

 

20.8

65.2

W

11 1/4

 

25

21.0

65.9

W 1/2

11 1/2

24

 

21.2

66.5

X

11 3/4

 

 

21.4

67.2

X 1/2

12

25

27.50

21.6

67.8

12 1/4

 

 

21.8

68.4

Z

12 1/2

26

28.75

22.0

69.1

Z 1/2

12 3/4

 

 

22.2

69.7

 

13

27

 

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