Hope you didnt sell the elemental rings, like the fire ring, thunder ring etc cause you only get them once each and you have to upgrade each them up fully.
Get both ends of the surface that will be stuck together. Now spread glue conservatively to both surfaces where they will stick together (this does not mean put down a pot of glue onto them just enough) Let the glue on both surfaces dry a bit until they become tacky Press both together if you can use weight leverage to hold it down, if its fragile then just leave to dry overnight.