Sizing guide
Every piece is cut to your size rather than picked from a shelf, so measuring correctly is the difference between jewellery you wear every day and jewellery that stays in a drawer. Five minutes here saves a remake.
Working with an AI agent? Give it your US ring size or your wrist circumference — it sends the size with the design.
Ring size
Two ways, depending on what you have at home. The first is more accurate.
You have a ring that fits
- Place the ring on a millimetre ruler.
- Measure the inner diameter — only the empty space, from one inner edge to the other. Don't include the metal walls.
- Compare with the table below. A reading of 17.3 mm, for example, is size 7.
The most common mistake: measuring the outer diameter adds twice the thickness of the ring — usually a whole size or more.
No reference ring
- Cut a strip of paper half a centimetre wide, or take a thin thread.
- Wrap it around the base of the finger you'll wear it on — snug but not tight.
- Mark where it meets, lay it flat on a ruler and measure. That's the circumference.
- Compare with the circumference column in the table.
Conversion table
| US size | Inner diameter | Circumference |
|---|---|---|
| 1 | 12.4 mm | 38.9 mm |
| 1.5 | 12.8 mm | 40.2 mm |
| 2 | 13.2 mm | 41.5 mm |
| 2.5 | 13.6 mm | 42.8 mm |
| 3 | 14 mm | 44.1 mm |
| 3.5 | 14.5 mm | 45.4 mm |
| 4 | 14.9 mm | 46.7 mm |
| 4.5 | 15.3 mm | 48 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 | 53.2 mm |
| 7 | 17.4 mm | 54.5 mm |
| 7.5 | 17.8 mm | 55.8 mm |
| 8 | 18.2 mm | 57.1 mm |
| 8.5 | 18.5 mm | 58.2 mm |
| 9 | 19 mm | 59.5 mm |
| 9.5 | 19.4 mm | 61 mm |
| 10 | 19.8 mm | 62.3 mm |
| 10.5 | 20.2 mm | 63.6 mm |
| 11 | 20.7 mm | 65 mm |
| 11.5 | 21.1 mm | 66.2 mm |
| 12 | 21.5 mm | 67.5 mm |
| 12.5 | 21.9 mm | 68.8 mm |
| 13 | 22.3 mm | 70.2 mm |
| 13.5 | 22.8 mm | 71.5 mm |
| 14 | 23.2 mm | 72.8 mm |
| 14.5 | 23.6 mm | 74.1 mm |
| 15 | 24 mm | 75.4 mm |
| 15.5 | 24.4 mm | 76.7 mm |
| 16 | 24.8 mm | 78 mm |
The ring is made to an exact size and isn't meant to be adjusted by hand — at the thickness we work in, it takes more force than fingers apply. If you fall between two sizes, choose the larger one: too small won't go on, slightly large can still be worn.
Bracelet size
Measure the wrist itself. We calculate the ease and the opening.
- Take a flexible tape measure, or a strip of paper and a ruler.
- Wrap it around the wrist exactly where you wear a watch — usually just below the wrist bone, towards the elbow.
- Snug against the skin but not tight.
- Give that number as it is. There's no need to add anything.
Measuring on your dominant hand usually gives a circumference 2–4 mm larger.
Fit
Once you have the circumference, the fit sets how much ease is added to it:
| Fit | Added to circumference | How it feels |
|---|---|---|
| Snug | +8 mm (0.31 in) | Stays in place and doesn't move along the arm |
| Comfort | +15 mm (0.59 in) | Moves a little up and down — the usual standard |
| Loose | +22 mm (0.87 in) | Moves freely. An open bracelet may slip off a lowered hand |
Four things worth a whole size
- Measure in the evening. Fingers and wrists hold fluid during the day — measuring in the morning leads to a tight piece.
- Measure at room temperature. Cold constricts blood vessels and noticeably shrinks the circumference.
- Check that the size passes over the knuckle. For many people the knuckle is wider than the base — a ring that fits only the base won't get there.
- A wide band feels tighter than a narrow one of the same size. We already allow for that, and the allowance is shown clearly.