Ring Size Information & Chart

All Love & Diamonds engagement rings and wedding bands are handcrafted to order and can be made to your exact size, with the exception of our ready-to-wear pieces.

Our rings follow the US ring size scale, measured numerically, with each size corresponding to a specific internal diameter and circumference in millimeters.

Since the difference between sizes is very small, even a slight variation can affect the fit. In some cases, the difference between a ring that fits perfectly and one that doesn’t may be less than half a millimeter. For optimal comfort and accuracy, we recommend having your finger professionally measured before placing your order.

You can also watch our video guide and refer to the conversion chart below.

International Ring Size Conversion Chart

by The Official International Ring Size Guide

Inside Diameter

Inside Circumference

Sizes

MM

Inches

MM

Inches

British & Australian

US & Canada

French & Russian

German

Japanese

Swiss

9.91

0.39

31.13

1.22

–

0

–

–

–

–

10.72

0.442

33.68

1.39

–

0

–

–

–

–

11.53

0.454

36.22

1.43

–

0

–

–

–

–

11.95

0.474

37.54

1.49

A

1/2

–

–

–

–

12.18

0.482

38.26

1.51

A 1/2

3/4

–

–

–

–

12.37

0.487

38.86

1.53

B

1

–

–

1

–

12.6

0.496

39.58

1.56

B 1/2

1 1/4

–

–

–

–

12.78

0.503

40.15

1.58

C

1 1/2

–

–

–

–

13

0.512

40.84

1.61

C 1/2

1 3/4

–

–

–

–

13.21

0.52

41.5

1.63

D

2

41 1/2

13 1/2

2

1 1/2

13.41

0.528

42.13

1.66

D 1/2

2 1/4

–

–

–

–

13.61

0.536

42.76

1.68

E

2 1/2

42 3/4

13 3/4

3

2 3/4

13.83

0.544

43.45

1.71

E 1/2

2 3/4

–

–

–

–

14.05

0.553

44.14

1.74

F

3

44

14

4

4

14.15

0.557

44.45

1.75

F 1/2

3 1/8

–

–

–

–

14.25

0.561

44.77

1.76

F 3/4

3 1/4

–

–

–

–

14.36

0.565

45.11

1.77

G

3 3/8

45 1/4

–

5

5 1/4

14.45

0.569

45.4

1.79

G 1/4

3 1/2

–

14 1/2

–

–

14.56

0.573

45.74

1.8

G 1/2

3 5/8

–

–

6

–

14.65

0.577

46.02

1.81

H

3 3/4

46 1/2

–

–

6 1/2

14.86

0.585

46.68

1.84

H 1/2

4

–

15

7

–

15.04

0.592

47.25

1.86

I

4 1/4

47 3/4

–

–

7 3/4

15.27

0.601

47.97

1.89

I 1/2

4 1/2

–

15 1/4

8

–

15.4

0.606

48.38

1.9

J

4 5/8

49

15 1/2

–

9

15.53

0.611

48.79

1.92

J 1/4

4 3/4

–

–

–

–

15.7

0.618

49.32

1.94

J 1/2

5

–

15 3/4

9

–

15.8

0.622

49.64

1.95

K

5 1/8

50

–

–

10

15.9

0.626

49.95

1.97

K 1/4

5 1/4

–

–

–

–

16

0.63

50.27

1.98

K 1/2

5 3/8

–

–

10

–

16.1

0.634

50.58

1.99

L

5 1/2

51 3/4

16

–

11 3/4

16.3

0.642

51.21

2.02

L 1/4

5 3/4

–

–

–

–

16.41

0.646

51.55

2.03

L 1/2

5 7/8

–

–

–

–

16.51

0.65

51.87

2.04

M

6

52 3/4

16 1/2

12

12 3/4

16.71

0.658

52.5

2.07

M 1/2

6 1/4

–

–

–

–

16.92

0.666

53.16

2.09

N

6 1/2

54

17

13

14

17.13

0.674

53.82

2.12

N 1/2

6 3/4

–

–

–

–

17.35

0.683

54.51

2.15

O

7

55 1/4

17 1/4

14

15 1/4

17.45

0.687

54.82

2.16

O 1/2

7 1/4

–

–

–

–

17.75

0.699

55.76

2.2

P

7 1/2

56 1/2

17 3/4

15

16 1/2

17.97

0.707

56.45

2.22

P 1/2

7 3/4

–

–

–

–

18.19

0.716

57.15

2.25

Q

8

57 3/4

18

16

17 3/4

18.35

0.722

57.65

2.27

Q 1/2

8 1/4

–

–

–

–

18.53

0.729

58.21

2.29

Q 3/4

8 1/2

–

18 1/2

17

–

18.61

0.733

58.47

2.3

R

8 5/8

59

–

–

19

18.69

0.736

58.72

2.31

R 1/4

8 3/4

–

–

–

–

18.8

0.74

59.06

2.32

R 1/2

8 7/8

–

–

–

–

18.89

0.748

59.34

2.35

R 3/4

9

–

19

18

–

19.1

0.752

60

2.36

S

9 1/8

60 1/4

–

–

20 1/4

19.22

0.757

60.38

2.38

S 1/4

9 1/4

–

–

–

–

19.31

0.76

60.66

2.39

S 1/2

9 3/8

–

–

–

–

19.41

0.764

60.98

2.4

S 3/4

9 1/2

–

19 1/2

19

–

19.51

0.768

61.29

2.41

T

9 5/8

61 1/2

–

–

21 1/2

19.62

0.772

61.64

2.43

T 1/4

9 3/4

–

–

–

–

19.84

0.781

62.33

2.45

T 1/2

10

–

20

20

–

20.02

0.788

62.89

2.48

U

10 1/4

62 3/4

–

21

22 3/4

20.2

0.797

63.46

2.5

U 1/2

10 1/2

–

20 1/4

22

–

20.32

0.8

63.84

2.51

V

10 5/8

63

–

–

23 3/4

20.44

0.805

64.21

2.53

V 1/4

10 3/4

–

–

–

–

20.68

0.814

64.97

2.56

V 1/2

11

–

20 3/4

23

–

20.76

0.817

65.22

2.57

W

11 1/8

65

–

–

25

20.85

0.821

65.5

2.58

W 1/4

11 1/4

–

–

–

–

20.94

0.824

65.78

2.59

W 1/2

11 3/8

–

–

–

–

21.08

0.83

66.22

2.61

W 3/4

11 1/2

–

21

24

–

21.18

0.834

66.54

2.62

X

11 5/8

66 1/4

–

–

26 1/4

21.24

0.836

66.73

2.63

X 1/4

11 3/4

–

–

–

–

21.3

0.839

66.92

2.64

X 1/2

11 7/8

–

–

–

–

21.49

0.846

67.51

2.66

Y

12

67 1/2

21 1/4

25

27 1/2

21.69

0.854

68.14

2.68

Y 1/2

12 1/4

–

–

–

–

21.89

0.862

68.77

2.71

Z

12 1/2

68 3/4

21 3/4

26

28 3/4

22.1

0.87

69.43

2.73

Z +1/2

12 3/4

–

–

–

–

22.33

0.879

70.15

2.76

Z+1

13

–

22

27

–

22.6

0.89

71

2.8

Z+1.5

13.5

–

–

–

–

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