I bought a girl earrings before realizing she doesn't wear any

So I might be overthinking this, or I might not be. I have a female friend whose birthday is coming up. She wears a lot of jewelry, and I thoight getting her some as a gift might be nice. It was going to be just a necklace, but the shopkeeper recommended earrings to go with it as a set and without really thinking, I agreed.

It was only after walking out of the store that I realized "I don't think I've ever seen her wear earrings before" and even checked her photos to make sure. Just as I thought, her hair covers her ears 90% of the time and the rest of the time I don't see earrings, which makes me feel hilariously dumb. To think I planned out every detail just to miss this.

Long story short, did I mess up here? And if I did, what should I do?

Update: Thanks for the advice, kind of combined several responses here. Just to be safe, I went back and got the earrings exchanged for a bracelet (Later found out my guess was right, she really doesn't have piercings). Then I gifted both the pendant and bracelet to her and told her about the earrings and my dumb mistake. She thought it was hilarious too lol