Engagement Rings Styles
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Use a ring that already fits or measure your finger to find the closest Stonex ring size.
| NZ / AU | US | Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| F | 3 | 14.1 | 44.2 |
| G | 3½ | 14.5 | 45.5 |
| H | 4 | 14.9 | 46.8 |
| I | 4½ | 15.3 | 48.0 |
| J | 5 | 15.5 | 48.7 |
| K | 5½ | 15.9 | 50.0 |
| L | 6 | 16.3 | 51.2 |
| M | 6½ | 16.7 | 52.5 |
| N | 7 | 17.1 | 53.8 |
| O | 7½ | 17.5 | 55.1 |
| P | 8 | 17.9 | 56.3 |
| Q | 8½ | 18.3 | 57.6 |
| R | 9 | 18.8 | 58.9 |
| S | 9½ | 19.2 | 60.2 |
| T | 10 | 19.6 | 61.4 |
| U | 10½ | 20.0 | 62.7 |
| V | 11 | 20.4 | 64.0 |
| W | 11½ | 20.8 | 65.3 |
| X | 12 | 21.2 | 66.6 |
| Y | 12½ | 21.6 | 67.8 |
| Z | 13 | 22.0 | 69.1 |
| Z+1 | 13½ | 22.4 | 70.4 |
| Z+2 | 14 | 22.8 | 71.7 |
| Z+3 | 14½ | 23.2 | 72.9 |
| Z+4 | 15 | 23.6 | 74.2 |
| Z+5 | 15½ | 24.0 | 75.5 |
| Z+6 | 16 | 24.4 | 76.8 |
| Z+7 | 16½ | 24.8 | 78.0 |
This chart helps estimate fit. US sizes are the closest equivalent, and sizing can vary slightly with a ring’s width and design.
Band width: Wider bands can feel tighter than fine bands. If you are between sizes, you may need the next available size.
Need help choosing a size?
Contact the Stonex team or visit our Auckland showroom and we’ll help you find the right fit.
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