Last delivery date for Christmas: Wed. 20th December

Ring Sizing

Finding your size and measuring a finger

If you already own a ring that fits perfectly, please feel free to bring it into the store for our sales team to measure on the spot or we can measure your finger in person.

Please note that you might have a slightly different size in a Jessica McCormack ring, due to our settings and design.

Ring size conversion guideline

mm inside circumferenceEuropeUnited KingdomUnited States
13.1 41 - -
13.4 42 D 2
13.7 43 E -
14.0 44 F 3
14.3 45 G -
14.7 46 H -
15.0 47 - 4
15.3 48 I -
15.6 49 J 5
16.0 50 K -
16.3 51 - -
16.6 52 L 6
17.0 53 M -
17.2 54 N -
17.5 55 O 7
17.8 56 - -
18.1 57 P 8
18.4 58 Q -
18.8 59 R -
19.1 60 S 9
19.4 61 - -
19.7 62 T 10
20.0 63 U -
20.4 64 V -
20.7 65 W 11
21.0 66 X -
21.3 67 Y 12
21.7 68 - -
22.0 69 Z -
22.3 70 - 13
22.7 71 - -
23.0 72 - 14
23.3 73 - -
23.7 74 - -
24.0 75 - 15
24.3 76 - -

Using the above international ring size converter, you can find your UK ring size.