Diamond Hoop Earrings Gold

Here's the short version. Prior to Christmas I bought my then gf a pair of white gold hoop earring with diamonds in them. I wanted her to have them because for one I loathe the pair that she wears, and second, my gf deserves nothing but the best. Around that time we had a major spat and we split, I bought her a couple of other gifts and gave those to her, but held on to the earrings. I planned to give them to her this Valentine's day but, as luck would have it, we're not together anymore, and I don't plan on reuniting with her anytime in the future. I feel awkward about returning the earrings to the store, and I am most certainly not about to give her this pricey duo. I've thought about donating them to charity, or giving them to someone, but there's something about giving someone a gift that you intended for someone else that does not sit well with me. I dont wear hoops, so I wont be wearing them. If you were me, what is the most creative thing you would do to dispose them?