What kind of glue/epoxy for this repair?

https://preview.redd.it/rggbb2p2w1ve1.jpg?width=909&format=pjpg&auto=webp&s=0721f77a99d99a64a2c886b960164dca7ba8ab0e

The "charm" portion of my beloved hairpin snapped cleanly off when I dropped it.

The discoloration in the photo is whatever bonding material they used at the factory to fuse them together. Don't know what that is.
Per the site, the charm is gold plated base metal. The pin is gold plated zinc alloy.

I love it very much and want to fix it!