Guide
Sizing Guide
Ring sizes on the shop are listed in European millimetre size — the inner diameter of the band in mm. Below are two simple ways to find yours at home, plus a conversion table.
Method 1 — measure a ring you own
- Take a ring that fits the finger you'd like to wear the new piece on.
- Measure the inner diameter in millimetres with a ruler.
- That number is your EU size (e.g. 17.5 mm → size 55).
Method 2 — measure your finger
- Wrap a thin strip of paper or string snugly around the base of the finger.
- Mark where it overlaps, lay it flat, and measure in millimetres.
- Divide by π (3.14) for the inner diameter, or use the chart below.
Measure at the end of the day when fingers are slightly warmer. Fingers swell and shrink — when in doubt, size up.
Conversion table
| EU | US | UK | Diameter (mm) |
|---|---|---|---|
| 47 | 4 | H | 15.0 |
| 49 | 4¾ | I | 15.6 |
| 51 | 5½ | K | 16.2 |
| 53 | 6¼ | L½ | 16.9 |
| 55 | 7 | N | 17.5 |
| 57 | 8 | O½ | 18.1 |
| 59 | 8½ | Q | 18.8 |
| 61 | 9½ | R½ | 19.4 |
| 63 | 10 | T | 20.1 |
| 65 | 11 | U½ | 20.7 |
| 67 | 11¾ | W | 21.3 |
Not sure which size to pick? Get in touch — we'll help you choose. Already have your piece? See the care guide.