I honestly wasn't expecting a lot for the price, but I know someone who loves cameos so I couldn't pass this up.
I glued it into a flat bezel using E6000 (as suggested). The cameo fit perfectly and stayed tight with the glue. I ended up using a silver bezel as it looked better with this colour cameo. It's not a sugary pink and the colour goes well with the cream coloured hummingbird and flowers. The cameo btw is about 3-4 mm deep so it has a nice low profile. The finished piece cost me just a few $$ including a chain and it's a good looking piece.