If you are unsure of your ring size you can book a complimentary design consultation with us in our Melbourne based Collingwood studio here.

Australian 

Internal Diameter (mm)

European

American (approx)

F

14.00

44

3

G

14.50

45.50

14.75

46

4

15.00

47

I

15.25

48

15.5

49

5

15.75

50

5

K

16.00

50.50

16.25

51

L

16.50

52

6

M

16.75

53

17.00

53.50

N

17.25

54

7

O

17.50

55

17.75

55.50

P

18.00

56

8

Q

18.25

57.50

8

18.50

58

8

R

18.75

59

9

S

19.00

60

9

19.25

60.50

T

19.5

61

19.75

62

U

20.00

62.50

10

V

20.25

63.50

10½

20.50

64

11