Ring Size Chart & Sizing Guide
Two truths about ring sizing: most people don't know theirs, and it almost never needs to block the purchase. Every Ghavelli ring includes one free resize within the first year — order your best estimate and we'll perfect it.
US ring size chart
| US size | Inside diameter | Inside circumference |
|---|---|---|
| 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 |
We make every ring in sizes 5–9, including half sizes. Outside that range? Ask us — most designs can be made to order in extended sizes.
Measuring at home
Method 1 — a ring that already fits
Take a ring worn on the same finger of the same hand, lay it over the chart's diameters (a printable version is coming — TODO: add printable PDF), or measure its inside diameter with a ruler against the table above. This is the most reliable home method.
Method 2 — the string test
Wrap a strip of paper or non-stretch string snugly where the ring will sit, mark the overlap, measure the length in millimetres, and match it to the circumference column. Measure twice; err toward the larger size.
Getting it right
- Fingers run smaller in the cold and larger in heat, after salt, and in the evening. Measure at day's end, at room temperature.
- The ring should slide on smoothly and resist slightly at the knuckle coming off.
- Wide bands wear tighter — go up a quarter-to-half size for anything over 6 mm.
- Keeping the proposal a surprise? Borrow a ring from the right finger, trace its inside circle on paper, or recruit a friend with steadier nerves. And remember the free resize — a close guess is good enough.
Still torn between two sizes? Choose the larger. Sizing down is the easier alteration.
Ready to look? Design your ring from setting to stone, or browse the bridal sets. Questions we haven't answered here? Read the FAQ or talk to us.