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Sizing

The method to use is to measure the circumference of your finger, using the chart below to determine the size. Ideally have a jeweler measure your finger.

It is very important that you measure your finger several times on different days, and at different times of day… If you are in between two sizes, always go for the smaller one!

Once you have the circumference in millimeters, find the length on the chart below and match it with the ring size you need.

Ring size Circumference (mm)

Ring size Diameter (mm)

Ring size USA/Canada (US ring size)

Ring size United Kingdom (UK ring size)

Ring size France (taille de bague)

Ring size Japan

40

12,7

1.4 (1)

C

0,0

0,2

41

13

1.8 (1-)

C 1/2

1,0

1,1

42

13,4

2.2 (2)

D 1/2

2,0

2,1

43

13,7

2.6 (2-)

E 1/2

3,0

3,1

44

14,0

3.0 (2-)

F

4,0

4,0

45

14,3

3.4 (3)

G

5,0

5,0

46

14,6

3.7 (3-)

G 1/2

6,0

5,9

47

15,0

4.1 (4)

H 1/2

7,0

6,9

48

15,3

4.5 (4-)

I 1/2

8,0

7,8

49

15,6

4.9 (4-)

J

9,0

8,8

50

15,9

5.3 (5)

K

10

9,7

51

16,2

5.7 (5-)

K 1/2

11

10,7

52

16,6

6.1 (6)

L 1/2

12

11,6

53

16,9

6.4 (6)

M 1/2

13

12,6

54

17,2

6.8 (6-)

N

14

13,6

55

17,5

7.2 (7)

O

15

14,5

56

17,8

7.6 (7-)

P

16

15,5

57

18,1

8.0 (7-)

P 1/2

17

16,4

58

18,5

8.4 (8)

Q 1/2

18

17,4

59

18,8

8.7 (8-)

R

19

18,3

60

19,1

9.1 (9)

S

20

19,3

61

19,4

9.5 (9-)

T

21

20,2

62

19,7

9.9 (9-)

T 1/2

22

21,2

63

20,1

10.3 (10)

U 1/2

23

22,2

64

20,4

10.7 (10-)

V

24

23,1

65

20,7

11.0 (11)

W

25

24,1

66

21,0

11.4 (11)

X

26

25,0

67

21,3

11.8 (11-)

X 1/2

27

26,0

68

21,6

12.2 (12)

Y 1/2

28

26,9

69

22,0

12.6 (12-)

Z 1/2

29

27,9

70

22,3

13.0 (12-)

Z +1

30

28,8

71

22,6

13.5

Z +1.5

72

22,9

Z +2.5

73

23,2

Z +3.5

74

23,5

Z +4.5