Measurement guide

Ring sizes

UNNA JEWELRY - How can I find out my ring size?
Are you having trouble finding your correct ring size? It's very easy to find if you know how to check.

A - USING AN EXISTING RING THAT FITS PROPERLY ON THE FINGER
Choose a ring that fits you well and measure its inner diameter, as shown in the following video:
Once you have this measurement, you can find your ring size in the table below. Please note: your ring size may vary by approximately half a size, depending on your temperature, hydration level, hormones, etc.

If you are between two sizes, we recommend choosing the larger one.

Internal Diameter (mm)

Internal Diameter (in)

UNNA OFFICIAL SIZE

15.3 mm

0.60 in

8

15.9 mm

0.63 in

10

16.5 mm

0.65 in

12

17.1 mm

0.67 in

14

17.8 mm

0.70 in

16

18.4 mm

0.73 in

18

*Sizes 8 and 18: available only in some styles.

B - COMPARING THE SIZES IN YOUR COUNTRY WITH THOSE IN UNNA
If you already know your ring size, please compare it with the following table:

CARAT OFFICIAL

Spain / Italy

France / Germany

United Kingdom / Australia

USA / Canada

Japan / China

8

8

48

I - J

4.5 / 5

8

10

10

50

K

5.5

9

12

12

52

L - M

6 / 6.5

11

14

14

54

N

6.75 / 7

13

16

16

56

O - P

7.5

15

18

18

58

Q

8

17

*Sizes 8 and 18: available only in some styles.