Number 51 belongs to the ring size of Europe, and the number of European rings is the circumference of the inner ring. The circumference of number 51 ring is 51mm. According to the ring size comparison table, the corresponding number in China can be obtained.
Mainland version ring size comparison chart
According to the table below, the ring with a circumference of 51mm corresponds to the mainland version size 11 and a diameter of 16.2mm.
Hong Kong Ring Size Comparison Table
According to the table below, the ring with a circumference of 51mm corresponds to the Hong Kong version number 10 and a diameter of 15.4mm.
