I bought sweet onyx earrings at the boutique in December. I recently noticed the posts are changing color, almost looks like they are tarnishing. I brought them to the boutique and spoke to the manager. She said she would get back to me, though hasn’t yet.
I know it’s something with my ph or something that’s making them turn color. I have to assume they aren’t actually tarnishing. Does anyone have experience with this OR with VCA changing the post from yg to wg or platinum?

I know it’s something with my ph or something that’s making them turn color. I have to assume they aren’t actually tarnishing. Does anyone have experience with this OR with VCA changing the post from yg to wg or platinum?
