If you visit any product page on our site, you’ll find a pop-up window below the ring size which will explain how to measure the internal diameter of your ring.
Once you have these measurements, you can find your size here:
15.0 mm - 10
15.5 mm - 10
16.0 mm - 12
16.5 mm - 12
17.0 mm - 14
17.5 mm - 16
18.0 mm - 16
To compare with rings you already own, we recommend printing our size guide.
Keep in mind that on-screen dimensions may not correspond to the actual measurements.
If you need more information in this regard, please get in touch with our customer service team through this form.