Perfect Proportion
Sizing & Fit Guide
Ensure your bespoke setting or fine jewellery fits comfortably. Explore standard measurements, international sizing conversions, and styling lengths.
Ring Size Chart
| US Size | UK & AU Size | Inside Diameter | Inside Circumference |
|---|---|---|---|
| 4 | H 1/2 | 14.9 mm | 46.8 mm |
| 5 | J 1/2 | 15.7 mm | 49.3 mm |
| 6 | L 1/2 | 16.5 mm | 51.9 mm |
| 7 | N 1/2 | 17.3 mm | 54.4 mm |
| 8 | P 1/2 | 18.1 mm | 57.0 mm |
| 9 | R 1/2 | 19.0 mm | 59.5 mm |
| 10 | T 1/2 | 19.8 mm | 62.1 mm |
Measuring at Home
Wrap a piece of thin string or paper around the base of the finger you wish to fit. Mark the spot where the paper meets. Measure the length with a ruler in millimeters (Circumference) and compare against our chart above. For high accuracy, we recommend measuring at room temperature when hands are warm.
Custom Sizing
If you require resizings, custom lengths, or half-sizes not listed here, our master goldsmiths can accommodate almost all specifications.
Inquire with ConciergeStandard Sizing Help
Maza Gems offers complimentary ring resizing for up to one year post-purchase on all standard collection rings.