1. Jade is a natural thing. If it is repaired manually, it will lose its aura and nature.
2. There is basically no jade restoration in our jade processing industry. Many of the jade repairs mentioned outside are not well mixed, and even if they are repaired, they cannot be used for a long time.
3, jade repair costs are high, add good jade. According to the normal cost performance, it is better to buy another piece of the same jade.
The above is just my own opinion. If you don't believe me, suit yourself.
In addition, I give you advice:
The best way is to take down the cracked jade and treasure it. If your mother has worn a bracelet for many years, you'd better buy a new one to wear, because people of their age will be uneasy without a bracelet, because my mother is the same, so I understand.
I am not from Shanghai, but the son of a jade merchant in Guangdong. I think you are filial, so I'll give you some humble opinions. Although it's handwritten, don't laugh. . .