1, jadeite can be glued with 502 when it is broken, but it is generally best to send it to a jewelry store and ask the maintenance master to help glue it.

2. There will be some tiny fragments after jadeite is broken, and some "pits" will be left after bonding, which will affect the bonding strength on the one hand and the beauty on the other. Cracks are still visible after bonding. If professionals are invited to wrap and connect the broken parts with gold or silver, the fastness is much higher than that of gluing, and the cracks can be blocked. However, the cost is much higher. If it's a good kind of jade, I suggest you use mosaic method.