Ring Size Guide
Find your perfect fit
A simple guide to measuring at home, with international references.
How to measure at home
- Wrap a thin strip of paper or string snugly around the base of your finger.
- Mark where the strip overlaps and lay it flat against a ruler.
- Measure the length in millimetres — this is your inside ring circumference.
- Compare your measurement against the chart below to find your size.
Tip: Measure at the end of the day when fingers are at their warmest, and check the same finger 2–3 times to be sure.
International size reference
| SA / UK | US | EU | Inside Ø (mm) |
|---|---|---|---|
| G | 3½ | 46 | 14.1 |
| I | 4½ | 48 | 15.0 |
| K | 5½ | 50 | 15.7 |
| L | 6 | 51½ | 16.1 |
| M | 6½ | 52½ | 16.5 |
| N | 7 | 54 | 16.9 |
| O | 7¼ | 55 | 17.3 |
| P | 7¾ | 56 | 17.7 |
| Q | 8¼ | 57½ | 18.1 |
| R | 8¾ | 59 | 18.5 |
| S | 9¼ | 60 | 18.9 |
| T | 9½ | 61½ | 19.4 |
| U | 10 | 62½ | 19.8 |
Sizes are approximate and may vary slightly between manufacturers.
Not quite sure?
Sizing for a surprise, or between two sizes? Our jewellers will gladly help confirm the right fit.
Ask our jeweller