How can I measure a ring?

You must know the ring size when you want to surprise someone with the gift of a ring, preferably without them suspecting anything. The simplest way is to measure a well-fitting ring. Do this by measuring the inside diameter with a ruler, then converting this to the ring size using a comparative chart (). There are also various apps to help with measuring a ring. The most reliable method is of course to ask your jeweller to measure the ring with a ring sizer stick.

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