The ring size in China is generally 4-26, while in Europe it is 44-61, so ring size 25 is one of the ring sizes in China.
Mainland version ring size comparison chart
The size range of the mainland version ring is 4 to 26 sizes. As shown in the table below, the circumference of ring size 25 is 65mm and the diameter is 20.4mm.
Hong Kong Ring Size Comparison Table
The size range of the Hong Kong version ring is from 7 to 25. As shown in the table below, the circumference of ring 25 is 67mm and the diameter is 20.8mm.