If you don’t know your finger size or if you need to make a gift, we recommend using another ring as a reference. Look for a ring, preferably a ‘wedding band’ style, that fits you perfectly. Using a ruler, measure the inner diameter of the ring and find the equivalent diameter in the circles: for example, if your ring has an inner diameter of 16.56 mm, it will correspond to size 12. If the diameter you measured falls between two sizes, choose the larger one.
The thickness of the edge of Cristalllo rings may vary depending on the size of the ring. As the circumference of the ring increases, its thickness decreases.

If you don’t know your ring size or you would like to make a gift, we recommend you to use another ring as reference. Find a ring, possibly the type of a wedding ring, that is exactly your size. With a ruler, measure its inner diameter and find the correspondent size. For example, if your ring has an inner diameter of 16.56 mm you are going to need a size 12. In case the diameter you measured is in between two sizes, always choose the bigger one.
The thickness of the edge of Cristallo’s rings may vary depending on the size of the ring.
Increasing the circumference of the ring decreases its thickness.