How to determine the proper ring size at home

1. Take a ring – yours or that of a friend of yours, which fits your finger.
2. After you make sure that you feel comfortable with it (it's not too tight or too loose), cut a strip of thick paper (for example from a magazine's page), wider than the ring you have selected, and roll it without crumpling it.
3. Place the paper roll inside the ring, press it tightly against the inner side of the ring and mark the place where the paper ends meet.
4. Take out the paper and unroll it, measure the distance between the end of the paper and the marked spot. The number corresponds to your ring size. For example, if you have measured a distance equal to 54 mm then your ring size is 54.
5. Repeat the procedure to make sure you're not wrong and confirm the precise ring size.
In order to be absolutely precise use rings that are not damaged in any way and are relatively round in shape.

Ring Size Conversion Chart

How to determine the proper length of a jewel

By measuring a similar jewel you can determine the length of the bracelet, necklace or other jewelry you'd like to buy.
If none such jewelry is currently available to you use a thick piece of non-elastic thread or lacing. Measure the length in centimeters.
The piece of jewelry you have ordered will be produced in the particular length you have specified.