Jewellery
Ring circumference
The distance around the inside of a ring, which is also the European (ISO) ring size in millimetres.
Under the ISO 8653 standard used across Europe, a ring's size is its inside circumference in millimetres: an EU 54 ring measures about 54 mm around the inside.
To measure a finger, wrap a strip of paper around the base of the finger, mark where it overlaps, and measure the length.
Related terms
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