Ai, beautiful jade. ——"Jade Chapter". A kind of flat, round and hollow jade. In ancient times, this kind of flaky round jade was divided into three types: Bi, Nuan and Huan according to the size of the central aperture. "Erya·Shiqi" records: "If the meat is twice as good, it is called Bi, if the meat is twice as good, it is called Ai, and if the meat is as good as one, it is called a ring."
Ai is generally used as a person's name. It means hoping that the child will be as good and excellent as jade