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Ring Size Guide

Kindly observe: For the most accurate ring sizing, we recommend a jeweller’s professional measurement.

To determine your ring size:

  1. Employ a piece of string or dental floss and encircle it around your finger.
  2. Note the point where the string end aligns.
  3. Measure the entire length and cross-reference it with the chart provided.
  4. Prevent any stretching or twisting of the string.
  5. Repeat the measurement 3 – 4 times to ensure precision.

As a reference; sizes 5-7 are categorized as SMALL, sizes 8-10 fall into the MEDIUM range, while sizes 11-12+ are considered LARGE.

Circumference (MM)Diameter (MM)UK Ring SizeUSA Ring Size
 

46.8

 

14.9

 

4
 

47.4

 

15.1

 

I

 

48.0

 
 

15.3

 
 

 

 

48.7

 

15.5

J 
 

49.3

 

15.7

 

 

5

 
 

50.0

 

15.9

K 
 

50.6

 

16.1

 

 

 

51.2

 

16.3

L 
 

51.9

 

16.5

 

 

6

 

52.5

 

16.7

 

M

 
 

53.1

 

16.9

 

 

 

53.8

 

17.1

N 
 

54.4

 

17.3

 

7
 

55.1

 

17.5

 

O

 
 

55.7

 

17.7

 

 

 

56.3

 

17.9

P 
 

57.0

 

18.1

 

8
 

57.6

 

18.3

 

Q

 
 

58.3

 

18.5

 

 

 
 

58.9

 
 

18.8

R 
 

59.5

 

19.0

 

9
 

60.2

 

19.2

S 
 

60.8

 

19.4

 

 

 

61.4

 

19.6

T 
 

62.1

 

19.8

 

10
 

62.7

 

20.0

U 
 

63.4

 

20.2

 

 

10½

 

64.0

 

20.4

 

V

 
 

64.6

 

20.6

 

 

11

 

65.3

20.8W 
 

65.9

 

21.0

 

 

11½

 

66.6

 

21.2

X 
 

67.2

 

21.4

 

12
 
 

67.8

 
 

21.6

Y
 
 

68.5

 

21.8

 

Z

 

12½

 

69.1

 

22.0

 

 
 

69.7

 

22.2

 
 

13

 

70.4

 

22.4

 

Z+1

 
 

71.0

 

22.6

 

Z+2

 

13½

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