I bought one of those. Is there anybody who can tell me what happens, when I click

1. on "use item"
2. on "use...one of my pets"?

If you click 'use item' it will give you a :) Don't know what happens though if you use it on your pet, maybe it's a stat booster?

When I used it on my pet, he gained 2 health points and 1 intelligence point.

Thank you for your answers - the Amethyl looks great :)