Size Guide
Find Your Ring Size
Three methods to find your perfect fit at home. When in doubt, go up half a size — Sara can always resize later.
Measure in the Evening
Fingers swell throughout the day. Evening measurements are the most accurate.
Between Sizes? Go Up
If you fall between two sizes, choose the larger one. It's easier to size down than up.
Measure 2–3 Times
Take multiple measurements on different days and average the results.
How to Measure
Measure an Existing Ring
Most AccurateSteps
- 1Find a ring that fits the intended finger well.
- 2Place it on a flat surface.
- 3Measure the inside diameter (edge to edge, not the outside) in millimeters using a ruler.
- 4Match the measurement to the chart below.
Tips
- —Use a ring that fits the specific finger you're sizing — ring sizes vary between fingers and hands.
- —Measure in millimeters for the most accurate result.
- —A caliper gives a more precise reading than a ruler if you have one.
Watch: How to Measure at Home
These quick video guides walk you through the most popular at-home sizing methods step by step.
Ring Size Chart
| US Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 4 | 14.9 mm | 46.8 mm |
| 4.5 | 15.3 mm | 48.0 mm |
| 5 | 15.7 mm | 49.3 mm |
| 5.5 | 16.1 mm | 50.6 mm |
| 6 | 16.5 mm | 51.9 mm |
| 6.5 | 16.9 mm | 53.1 mm |
| 7 | 17.3 mm | 54.4 mm |
| 7.5 | 17.7 mm | 55.7 mm |
| 8 | 18.1 mm | 57.0 mm |
| 8.5 | 18.5 mm | 58.3 mm |
| 9 | 19.0 mm | 59.5 mm |
| 9.5 | 19.4 mm | 60.8 mm |
| 10 | 19.8 mm | 62.1 mm |
| 10.5 | 20.2 mm | 63.4 mm |
| 11 | 20.6 mm | 64.6 mm |
| 11.5 | 21.0 mm | 65.9 mm |
| 12 | 21.4 mm | 67.2 mm |
| 12.5 | 21.8 mm | 68.5 mm |
| 13 | 22.2 mm | 69.7 mm |
| 13.5 | 22.6 mm | 71.0 mm |
Most women wear sizes 5–8. Most men wear sizes 8–12. These are US standard ring sizes.
Still Not Sure?
Sara can ship you a complimentary ring sizer, or you can visit the studio in San Clemente for a professional fitting. Custom and Fine orders always include a sizing consultation before production begins.
Book a Consultation