Ring Size Guide
A little measuring makes finding your fit easier. Start with a ring you love or a narrow strip of paper.
Measure a ring you own
- Choose a ring that fits the finger you plan to wear it on.
- Measure across the centre, from one inside edge to the other, in millimetres. Exclude the metal band.
- Match the inside diameter to the chart below.
Measure your finger
- Wrap a narrow paper strip around the base of your chosen finger. Keep it comfortably snug.
- Mark where the ends meet, then lay the paper flat and measure the length in millimetres.
- Divide this length by 3.14 to estimate the inside diameter, then compare it with the chart. Measure two or three times to check your result.
Ring size chart
Use the size system stated on the product page. This conversion chart is a reference, not a list of sizes available for every design.
| US / CAN | Inside diameter Millimetres (mm) |
UK / AUS |
|---|---|---|
| 3 | 14.1 | F |
| 4 | 14.9 | H ½ |
| 5 | 15.7 | J ½ |
| 6 | 16.5 | L ½ |
| 7 | 17.3 | O |
| 8 | 18.1 | Q |
All measurements are approximate; home measuring is a starting point.
Tips for a comfortable fit
- Measure later in the day with warm hands.
- Measure each finger separately, including on your other hand.
- Between sizes? Consider the larger available size, and check the product's fit notes.
Adjustable & open rings
For Perle de bay designs marked “Adjustable” or “Open Ring”, follow the individual product's measurements. Adjustable does not mean every finger size will fit. If no adjustment range is listed, contact us with the design name and your measurement before ordering. Avoid forcing or repeatedly bending the band.
Need help choosing?
Send your finger circumference or ring diameter, together with the design name, to perledebay@gmail.com, or contact us.