UK ring sizes are measured on a letter scale, typically from A (smallest) through to Z and beyond, rather than the numeric scales used in the US or Europe. Getting this right matters — a ring that's even half a size out can be uncomfortable or slip off.
The most accurate way: get sized in person
If you can, the most reliable method is to visit us in store and have your finger measured properly with a ring sizer. Finger size can vary through the day and with temperature, so a professional measurement accounts for that. You can find our details on our Contact page.
Measuring at home
If you can't get to us, here's a reasonably accurate way to measure at home:
- Cut a thin strip of paper about 2cm wide and long enough to wrap around your finger.
- Wrap it snugly around the base of the finger you'll wear the ring on — not too tight, not loose enough to slide off.
- Mark where the paper overlaps, then measure the length in millimetres from the end to the mark. This is your finger's circumference.
- Compare that measurement against a UK ring size chart to find your letter size.
A few things that affect accuracy: measure at the end of the day when fingers are slightly larger, avoid measuring when your hands are cold, and measure your dominant hand if the ring is for a hand that does more manual work (it's often very slightly larger).
Buying a ring for someone else, secretly
Proposing and need a size without asking? We've written a full guide on how to find someone's ring size without them knowing.
What if it doesn't fit?
Every ring we make can be resized after the fact in most cases — our repairs and servicing team handles resizing regularly, so it's rarely worth guessing when your fiancéé or fiancé can get properly measured with us afterwards, especially for proposals where a rough size will do for the big moment.
Once you know your size, you can browse our full ring collection and select your exact size before checkout.