While the metric system is the world’s most widely used system of measurement, the United States has been the largest hold out.
This can make understanding jewelry measurements, traditionally measured in millimeters, a bit tough for us metric-challenged Americans. To help, Sorella provides the approximate conversion to inches with the millimeter measurements of each of our pieces.
A handy reference chart that converts millimeters to inches can be found at metric-conversions.org. A good reference point to memorize is 25mm is approximately one inch.Posted by Beth