View ring size chart
Use the chart to match an inside diameter with its AU/NZ ring size and closest US/CA equivalent.
| AU/NZ size | Inside diameter (mm) | US/CA size |
|---|
| F | 14.0 mm | 3 |
| G | 14.4 mm | 3½ |
| H | 14.8 mm | 4 |
| I | 15.2 mm | 4½ |
| J | 15.6 mm | 5 |
| K | 16.0 mm | 5½ |
| L | 16.4 mm | 6 |
| M | 16.8 mm | 6½ |
| N | 17.2 mm | 7 |
| O | 17.6 mm | 7½ |
| P | 18.0 mm | 8 |
| Q | 18.4 mm | 8½ |
| R | 18.8 mm | 9 |
| S | 19.2 mm | 9½ |
| T | 19.6 mm | 10 |
| U | 20.0 mm | 10½ |
| V | 20.4 mm | 11 |
| W | 20.8 mm | 11½ |
| X | 21.2 mm | 12 |
| Y | 21.6 mm | 12½ |
| Z | 22.0 mm | 13 |
Measure your ring size
Use a ring that already fits the intended finger to estimate your size at home.
- Choose a ring that fits the intended finger comfortably
- Measure straight across the widest part of its inside opening
- Match that measurement to the inside diameter in our chart
Understand band width
Band width changes both visual presence and how a ring feels on the hand. Images can suggest proportion, but they cannot reproduce exact physical scale. Our James Street team can help you compare available examples.
Understand profile and fit
Band profile describes the outside shape. Fit describes how the inside sits against the finger. Width, thickness and profile can all influence how a band feels, so our team can help you compare the available options before the final specification is confirmed.
Get guidance at James Street
Visit our James Street boutique in Brisbane for sizing guidance and to compare width, profile and fit in person. If you are outside Brisbane, contact our team to discuss remote guidance.
Molten Store
Shop 5, 50 James Street
Fortitude Valley QLD 4006Phone (07) 3252 9850
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