| Category | US Size / Wrist | Diameter (mm) | Circumference (mm) | Bracelet Length (inches) |
|---|---|---|---|---|
| Ring | 5 | 15.7 mm | 49.3 mm | — |
| Ring | 6 | 16.5 mm | 51.8 mm | — |
| Ring | 7 | 17.3 mm | 54.4 mm | — |
| Ring | 8 | 18.1 mm | 56.9 mm | — |
| Ring | 9 | 18.9 mm | 59.5 mm | — |
| Ring | 10 | 19.8 mm | 62.1 mm | — |
| Ring | 11 | 20.6 mm | 64.6 mm | — |
| Ring | 12 | 21.4 mm | 67.2 mm | — |
| Ring | 13 | 22.2 mm | 69.7 mm | — |
| Bracelet | Small (6") | — | 152 mm | 6.5" – 7" |
| Bracelet | Medium (7") | — | 178 mm | 7.5" – 8" |
| Bracelet | Large (8") | — | 203 mm | 8.5" – 9" |