All Oliver The Jeweller rings are made according to international standards (ISO 8653) to define ring sizes. These are calculated using internal measurements with ring sizers and mandrels.

How to use the chart:

1. Grab either a length of string, strip of paper or a tape measure.

2. Wrap it around the finger you'll be wearing the ring on - consider where on your finger the ring will sit - and mark a line overlapping where the wrap joins.

3. Lay your strip flat and use a ruler to measure the length between the marks.

4. Use the chart to match up your measurement with the closest size.

If you need any assistance finding the correct size please email info@oliverthejeweller.com