Size guide
| Diameter (mm) | Ring Size |
| 15.3 mm | 4.5 |
| 15.7 mm | 5 |
| 16.1 mm | 5.5 |
| 16.5 mm | 6 |
| 16.9 mm | 6.5 |
| 17.3 mm | 7 |
| 17.7 mm | 7.5 |
| 18.1 mm | 8 |
| 18.5 mm | 8.5 |
| 19 mm | 9 |
| 19.4 mm | 9.5 |
| 19.8 mm | 10 |
| 20.2 mm | 10.5 |
| 20.6 mm | 11 |
| 21 mm | 11.5 |
| 21.4 mm | 12 |
| Bracelet Size Centimeters | Bracelet Size Inches |
|---|---|
| 16.50 cm | 6.5 |
| 17.15 cm | 6.75 |
| 17.75 cm | 7 |
| 18.50 cm | 7.25 |
| 19.00 cm | 7.5 |
| 19.75 cm | 7.75 |
| 20.30 cm | 8 |
| 21.00 cm | 8.25 |
| 21.50 cm | 8.5 |
| 22.25 cm | 8.75 |
| 23.00 cm | 9 |