Sizing guide
Find your perfect fit
Two simple ways to measure at home, in under five minutes. Caught between two sizes? Always choose the larger, and your advisor helps with the final adjustment.
Home · Ring Sizing
Two simple ways to measure at home, in under five minutes. Caught between two sizes? Always choose the larger, and your advisor helps with the final adjustment.
Home · Ring Sizing
Pick whichever suits you. For a surprise, method 1 is ideal: quietly "borrow" a ring they already wear.
Most accurate · perfect for surprises
When you don't have a ring handy
Sizes in the US system (the most common for engagement rings). Falling between two? Choose the larger.
| Size (US) | Inner diameter | Circumference |
|---|---|---|
| 4 | 14.8 mm | 46.5 mm |
| 4½ | 15.3 mm | 48.0 mm |
| 5 | 15.7 mm | 49.3 mm |
| 5½ | 16.1 mm | 50.6 mm |
| 6 | 16.5 mm | 51.9 mm |
| 6½ | 16.9 mm | 53.1 mm |
| 7 | 17.3 mm | 54.4 mm |
| 7½ | 17.7 mm | 55.7 mm |
| 8 | 18.1 mm | 57.0 mm |
| 8½ | 18.5 mm | 58.3 mm |
| 9 | 19.0 mm | 59.5 mm |
| 9½ | 19.4 mm | 60.8 mm |
| 10 | 19.8 mm | 62.1 mm |
Small details that make the difference between "it fits" and "it fits perfectly".
Fingers swell slightly; the afternoon size is the most realistic.
Cold shrinks the finger. Avoid measuring with chilly hands.
A thick band (3 mm+) fits tighter; consider a half size more.
Repeat at different moments and average for confidence.