Pink Glass Bell

I picked up this lovely Pink glass bell the other day at a secondhand shop.
I'm not sure if it is valuable or not. It has no bell inside and looks like it never has had one.
Can anyone tell me how to tell if it is a depression glass or something.
It has etched unicorns on 3 sides, the one in the photo seems to have a missing bit of the horn. As if it wasn't done properly.
It's very pretty just the same. It's 20cm or 8" tall.