Ring size guide

Our rings use UK sizes, from H½ to Z½. Find your size in the table below by measuring in millimetres.

The easiest way: measure a ring you already wear

Take a ring that fits the finger you have in mind. Measure the inside, from edge to edge, in millimetres (1 cm is 10 mm). That is the diameter – find it in the table.

No ring to hand? Use a strip of paper

  1. Wrap a thin strip of paper or string around the base of your finger.
  2. Mark where the ends meet.
  3. Lay it flat and measure the length in millimetres (for example, 5.4 cm is 54 mm). That is the circumference – find it in the table.

Good to know

  • Measure at the end of the day, when your hands are warm – fingers are slightly larger then.
  • If your knuckle is larger than the base of your finger, measure the knuckle: the ring has to slide over it.
  • Between two sizes? Choose the larger one.
  • For wide bands, go half a size up.

The sizes available for each ring are shown on its product page.

UK size Diameter (mm) Circumference (mm)
H½ 14.9 46.8
J½ 15.7 49.3
L½ 16.5 51.9
N½ 17.3 54.4
P½ 18.1 57.0
R½ 19.0 59.5
T½ 19.8 62.1
V½ 20.6 64.6
X½ 21.4 67.2
Z½ 22.2 69.7

Still unsure? Send us a message and we'll help you choose.