A diameter of 1.8 centimeters is equivalent to 18mm. The diameter range of Chinese ring sizes is 14-20.8mm, European ring sizes range from 12.73-23.87mm, and American ring sizes range from 15.7-21.4mm. They all have rings with a diameter of 18mm, which needs to be selected according to the comparison table used by the store.
Mainland version ring size comparison chart
According to the table below, the mainland version size corresponding to a ring with a diameter of 18mm is around 16-17, and the circumference is around 56mm.
Hong Kong Ring Size Comparison Table
According to the table below
know
The diameter is
18mm
US Ring Size Comparison Table
According to the table below
know
The diameter is
18mm
European Ring Size Comparison Table
According to the table below
know
The diameter is
18mm