The most reliable way to check your UK ring size at home is to measure a ring that already fits the same finger well, then share that measurement with us so we can confirm the letter size in writing. UK sizes use letters. A millimetre measurement of the inner circumference is the most useful figure you can send, because it does not depend on which chart you had to hand. We will still talk the fit through with you, because a number on its own does not describe the knuckle, the width of the band or the time of day you measured.
Start with a ring that already fits
If you have a ring that sits comfortably on the same finger, measure the inside circumference in millimetres, or the inside diameter if that is easier, and send both if you can. Our guide to how millimetres turn into a size explains that conversion. Measure at the end of a normal day, when your hands are at a typical temperature. First thing on a cold morning the same ring can feel looser; on a warm evening it can feel tighter.
The knuckle, the band width and a sizer
Many people have a knuckle that is larger than the base of the finger. The ring has to pass the knuckle and then stay put. If you only measure the base, the finished ring may be hard to take off. If you only measure the knuckle, it may spin once it is on. Our guide to how tight an engagement ring should be covers that balance. A wider band will also feel tighter than a slim one in the same letter size, so tell us the width you have in mind.
If you do not have a ring that fits, we can talk you through a sizer on a video consultation. A paper strip around the finger can give a rough idea, but it is easy to pull too tight or too loose, and we would not treat it as the final size. We do not ask you to rely on a printed chart alone.
How we confirm the size
We work by video consultation and message. We confirm the size with you in writing as part of design approval, alongside the CAD and the stone. Nothing is made until that approval is given and the 70 percent deposit is paid. Making time is then 5 to 6 weeks, and the ring is UK hallmarked before insured, tracked FedEx delivery. If the design can be resized, we include one free resize within 1 month of delivery, in case daily wear feels different from the measurement. If you are measuring for a surprise, our guide to finding a ring size without spoiling the surprise is the better starting point.
If you would like help with a measurement, get in touch or browse the diamonds we can source.
Frequently asked questions
How can you check your UK ring size at home?
The most reliable home method is to measure a ring that already fits the same finger well, by taking the inner circumference in millimetres, then let us convert that into a UK letter size. Measure at the end of a normal day, and tell us if the knuckle is much larger than the base of the finger.
Can you use a paper strip or a printed chart?
A paper strip can give a rough idea, but it is easy to pull it too tight or too loose. We would rather have a measurement from a well fitting ring, or talk you through a sizer, than rely on a printed chart alone.
When should you measure?
Measure at the end of a normal day, when the hand is at a typical temperature. Fingers are often slimmer first thing in the morning, and they swell in heat or after exercise, which can make a single early measurement misleading.
What if the size is not quite right when the ring arrives?
If the design can be resized, we include one free resize within 1 month of delivery. We still prefer to confirm the size with you in writing before making begins, so a resize is only needed if daily wear feels different from the measurement.