1, Guifei bracelet refers to an oval bracelet, which is said to have been invented for Yang Guifei to make her arms look slim. According to its shape, bracelets can be divided into two types: safe bracelets and noble bracelets. The round one is called a peace bracelet, and the oval one is called a princess bracelet. So the bracelet belongs to the mid-range.

2. The imperial concubine ring is easily damaged due to its poor compression resistance. If the material is thin, it will be easily damaged. A noble lady in jade refers to a kind of bracelet, a noble princess bracelet. Its characteristics are that the inner ring is oblate, the outer ring is oblate, and the ribs vary from bow to circle.