Not being Catholic, I had to look up what the medal meant when I found it. It’s called the Miraculous Metal.
Here’s a little blurb from the site I looked it up on.

There is no superstition, nothing of magic, connected with the Miraculous Medal. The Miraculous Medal is not a “good-luck charm”. Rather, it is a great testimony to faith and the power of trusting prayer. Its greatest miracles are those of patience, forgiveness, repentance, and faith.

The hummingbird also has powerful meaning in her life.

I hope she likes the colors I’ve choosen.