Measure the inside diameter of a ring that fits you well, or the circumference of your finger at the end of the day, when fingers are largest.
| Diameter (mm) | Circumference (mm) | EU / ISO | UK | US |
|---|---|---|---|---|
| 15.3 | 48 | 48 | J½ | 4.5 |
| 15.9 | 50 | 50 | L | 5.25 |
| 16.5 | 52 | 52 | M | 6 |
| 17.2 | 54 | 54 | N½ | 7 |
| 17.8 | 56 | 56 | P | 7.5 |
| 18.5 | 58 | 58 | Q½ | 8.5 |
| 19.1 | 60 | 60 | S | 9 |
| 19.7 | 62 | 62 | T½ | 10 |
| 20.4 | 64 | 64 | V | 10.5 |
Unsure? Book a private viewing and we will size your finger in the boutique, or ask for a complimentary ring sizer.