There's not much difference in the size of the ring. Different countries in different regions of the ring size control standards are different, in general, the difference between a ring size between 1mm and 3mm circumference.
What is the ring number
The number of the ring, that is, the standard of the size of the ring finger, is called the hand inch. The size of the hand is expressed by the number of numbers. The size of the hand is divided into American style and Hong Kong style. Their corresponding diameters and girth are different.
Many countries have their own standard ring size comparison table, the current international use of more American code, Japanese code, Swiss code and so on.
China currently uses the ring size control standards of the mainland and Hong Kong respectively, and the Hong Kong version of the ring size control table is currently used more.
