Size Guide Rings

If you already know your ring size, please refer to the chart below. On our Irish store, rings are listed in UK letter sizes — or measure your finger or an existing ring and find your size in the chart.

Ring Size
(UK)
Ring Size
(US)
Finger Circumference
(mm)
Ring Diameter
(mm)
J½ 5 49 15.7
L½ 6 52 16.5
N½ 7 54 17.3
P½ 8 57 18.1
R½ 9 60 19.1
T½ 10 62 19.7
V½ 11 64 20.4
X½ 12 67 21.3
Z+1 13 70 22.3
Z+3 14 73 23.1

📏 How to Measure Your Ring Size

1

Prepare Materials

  • Cut a 10cm paper strip (1cm wide)
  • Use a ruler and fine-tip pen
2

Wrap & Mark

  • Wrap snugly around finger base
  • Mark overlap point with pen
  • Ensure firm but comfortable fit
3

Measure Length

  • Lay strip flat on ruler
  • Measure mark-to-mark length
  • Round up to nearest full mm
4

Find Your Size

  • Match your measurement in mm to the Finger Circumference column in our size chart
  • When in doubt, choose larger size
  • Need help? Contact us

💍 Measure a Ring You Already Own

Measuring the internal diameter of a ring with a ruler
1

Pick a Ring

  • Choose a ring that fits the intended finger well
2

Measure the Diameter

  • Measure the internal diameter of the ring using a ruler
  • Place it flat and measure straight across the inside
3

Find Your Size

  • Use the size chart above to match the diameter to the corresponding ring size