by no means is this revolutionary but my ocd (or chronic black and white thinking) used to prevent me from doing this and now i am an avid metal mixer. i adore a gold pendant on a silver chain and vice versa and a silver & gold stack on each ear.
It’s just about placement. Right now I am in my all gold earrings with silver necklace / bracelet / rings and one bronze ring era. I think when you mix metals intentionally it WORKS.