Every piece we make is made after you order it, and we do not accept change-of-mind returns on made-to-order work. That makes ring size the measurement worth taking slowly. Getting it right the first time saves a resize, and on some designs it saves rather more than that.
Write to us before you order and we will talk you through this on your own hand. What follows is how to arrive at that conversation with a good answer already in hand.
If you would rather work from something printed, there is a ring sizer you can print, with a paper strip and a chart of circles on one sheet. Check it against a bank card before you use it. A printer shrinks the page unless you stop it, and a shrunken sheet reads too large.
Method one: measure a ring you already wear
This is the most reliable approach, provided the ring you measure is worn on the same finger you are buying for. If the ring is meant to be a surprise, the same method works on one of theirs, borrowed quietly for an evening.
Take a ring that fits well and measure the inside diameter across the middle, in millimetres, using a ruler with fine gradations. Then compare against the table below. Measuring the inside is what matters; the outside includes the thickness of the band and will send you a size or more too large.
| Size | Inside diameter | Inside circumference |
|---|---|---|
| 4 | 14.9 mm | 46.8 mm |
| 5 | 15.7 mm | 49.3 mm |
| 6 | 16.5 mm | 51.9 mm |
| 7 | 17.3 mm | 54.4 mm |
| 8 | 18.1 mm | 57.0 mm |
| 9 | 18.9 mm | 59.5 mm |
| 10 | 19.8 mm | 62.1 mm |
| 11 | 20.6 mm | 64.6 mm |
Half sizes fall between these, roughly 0.4 mm of diameter apart. If you land between two, tell us both numbers rather than rounding.
Method two: wrap the finger
If there is no ring to measure, cut a strip of paper about 5 mm wide, wrap it around the base of the finger, and mark where it overlaps. Lay it flat, measure to the mark in millimetres, and read that as circumference in the table above.
The printable sizer does the same job with the sizes already marked along the strip, which saves reading the number off the table.
Paper stretches and thread stretches more, so pull it snug rather than tight and do it three times. If the three readings disagree, take the largest.
When you measure matters
Fingers change through the day and with the weather. They are smallest in the morning and in the cold, and largest at the end of the day and in the heat.
Measure late in the day, at normal room temperature, when your hands are neither cold nor swollen. Do not measure straight after exercise, after a long flight, or after a salty meal. If you can measure on three separate days and get the same answer, you have your size.
Two things that catch people out
Knuckles. If your knuckle is noticeably larger than the base of the finger, the ring has to pass the knuckle to get on. Size for the knuckle, then tell us, because a ring sized for the knuckle can spin at the base and there are things we can do about that at the making stage.
Band width. A wide band takes up more of the finger and fits more snugly than a narrow one at the same nominal size. If you are buying something broad and you are between sizes, go up rather than down.
What can be resized later, and what cannot
Most of our rings can be resized without difficulty, and a plain or side-stone band usually has room to move a size in either direction.
Eternity rings are the exception worth knowing about in advance. When diamonds run the whole way around the band, there is no plain stretch of metal to cut and rejoin, so resizing is either limited or not possible at all depending on the design. If you are ordering one of those, treat the measurement as final and talk to us first.
Then check with us
Once you have a number, write to us before you place the order. Tell us the size you measured, how you measured it, which finger it is for and which design you are looking at. We will tell you whether it holds for that particular piece.
It takes a few minutes and it is considerably easier than fixing it afterwards.