Use Our Ring Sizing App
The easiest way to find your ring size is by using our Ring Sizing App.
You don't need an existing ring, simply take a photo of your hand next to a standard bank card, and the app will calculate your recommended ring size in just a few moments.
You'll find the "Find my size" button on all of our ring product pages, located just above the ring size options.
While no sizing method can guarantee a perfect fit, our Ring Sizing App is the quickest and easiest way to find your recommended size if you're unsure where to start.
Ring Size Chart
If you already know your ring size and simply need to convert it to our sizing, use the chart below.
| Ring Diameter (mm) | Finger Circumference (mm) | Size | EU | UK | US |
|---|---|---|---|---|---|
| 15 | 47 | XXS | 47 | H | 4 |
| 15.75 | 49 | XS | 49 | J | 5 |
| 16.5 | 52 | S | 52 | L | 6 |
| 17.5 | 54 | M | 54 | N | 7 |
| 18 | 57 | L | 57 | P | 8 |
| 19 | 60 | XL | 60 | R | 9 |
| 19.75 | 62 | XXL | 62 | T | 10 |
(On mobile, swipe across to view the full table)
If your regional sizing isn't shown, you can view our international ring size conversion chart by clicking here.
Already Have a Ring That Fits?
If you already own a ring that fits the finger you'd like to wear your new ring on, you can also measure its inside diameter (as shown in the diagram below) and compare the measurement with our ring size chart above.
Need to Discreetly Find Out Someone’s Ring Size?
Planning a surprise gift? There are a few simple ways to find the right size without giving anything away.
If you're able to borrow a ring they already wear on the correct finger, you can measure its inside diameter and compare it with our ring size chart.
Alternatively, you could ask a close friend or family member, as they may already know their ring size and be able to help keep the surprise intact.
Still not sure?
If your ring isn't quite the right fit, don't worry. We offer exchanges on eligible rings if you need to go up or down a size.
Please note: our made-to-order rings are handcrafted specifically for you and are therefore are non-returnable.
You can submit an exchange request here.
Printable ring size guide
If you have access to a printer, you can also download our printable ring size guide and follow the instructions provided.
Important: Please make sure you print the guide using “Fit to page” so the measurements are accurate.