Sizing

GETTING THE CORRECT SIZE

At Guzzardi each piece is custom made so it is essential to order the right size. As we cannot offer a refund if the size you order is not correct. There are a number of ways to find your size and probably the best way to to do this is to go to a jeweller. If you do not live in the UK please see the international sizing chart below to find your UK size. 

Not all ring sizers are equal!

Please be aware that the plastic ring gauge commonly used to find your ring size can be misleading as you there is the tendency to pull them tight which ultimately doesn’t take into consideration the knuckle. The ring sizer pictured here can usually be picked up on Amazon or eBay for a reasonable price.

Why Sizing is important at Guzzardi

It is common in the jewellery business to make only a few sizes from there it is up to the Goldsmith to make the adjustment to fit your size, however this can create a disproportionate ring and risk losing the integrity of the piece.

By using the 3D we are able to scale each piece to your size therefore retaining the original design and all its characteristics


International Ring Size Conversion Chart

Diameter 

Circumf.

Sizes

MM

Inch

MM

Inch

UK Australia

US Canada

French Russian

German

Japan

Italy Spain

9.91

0.390

31.13

1.22

0000

10.72

0.442

33.68

1.39

00

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

12.60

0.496

39.58

1.56

B 1/2

1 1/4

12.78

0.503

40.15

1.58

C

1 1/2

13.00

0.512

40.84

1.61

C 1/2

1 3/4

13.21

0.520

41.50

1.63

D

2

41 1/2

13 1/2

2

1 .5

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 .75

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 .25

14.45

0.569

45.40

1.79

G 1/4

3 1/2

14 1/2

14.56

0.573

45.74

1.80

G 1/2

3 5/8

6

14.65

0.577

46.02

1.81

H

3 3/4

46 1/2

6 .50

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 .75

15.27

0.601

47.97

1.89

I 1/2

4 1/2

15 1/4

8

15.40

0.606

48.38

1.90

J

4 5/8

49

15 1/2

9

15.53

0.611

48.79

1.92

J 1/4

4 3/4

15.70

0.618

49.32

1.94

J 1/2

5

15 3/4

9

15.80

0.622

49.64

1.95

K

5 1/8

50

10

15.90

0.626

49.95

1.97

K 1/4

5 1/4

16.00

0.630

50.27

1.98

K 1/2

5 3/8

10

16.10

0.634

50.58

1.99

L

5 1/2

51 3/4

16

11.75

16.30

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

0.650

51.87

2.04

M

6

52 3/4

16 1/2

12

12.75

16.71

0.658

52.50

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 .25

17.45

0.687

54.82

2.16

O 1/2

7 1/4

17.75

0.699

55.76

2.20

P

7 1/2

56 1/2

17 3/4

15

16 .25

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 .75

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

2.30

R

8 5/8

59

19

18.69

0.736

58.72

2.31

R 1/4

8 3/4

18.80

0.740

59.06

2.32

R 1/2

8 7/8

18.89

0.748

59.34

2.35

R 3/4

9

19

18

19.10

0.752

60.00

2.36

S

9 1/8

60 1/4

20 .25

19.22

0.757

60.38

2.38

S 1/4

9 1/4

19.31

0.760

60.66

2.39

S 1/2

9 3/8

19.41

0.764

60.98

2.40

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 .50

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 .75

20.20

0.797

63.46

2.50

U 1/2

10 1/2

20 1/4

22

20.32

0.800

63.84

2.51

V

10 5/8

63

23 .75

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

65.50

2.58

W 1/4

11 1/4

20.94

0.824

65.78

2.59

W 1/2

11 3/8

21.08

0.830

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 .25

21.24

0.836

66.73

2.63

X 1/4

11 3/4

21.30

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 .25

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

28.75

22.10

0.870

69.43

2.73

Z +1/2

12 3/4

22.33

0.879

70.15

2.76

Z+1

13

22

27

22.60

0.890

71.00

2.80

Z+1.5

13.5

22.69

0.893

71.28

2.81

Z+2

22.92

0.902

72.00

2.83

Z+2.5

23.06

0.908

72.45

2.85

Z+3

23.24

0.915

73.01

2.87

Z+3.5

23.47

0.924

73.73

2.90

Z+4

23.55

0.927

73.98

2.91

Z+4.5

23.87

0.940

74.99

2.95

Z+5

24.27

0.956

76.25

3.00

Z+6

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