"I wouldn't be able to without my earrings, no. If my ears weren't pierced and I never wore the earrings, I'd never have known about Tikki and the Miraculous and probably just given them to a friend with pierced ears or went to get mine done."

They just looked like regular red earrings when she wasn't transformed, after all. Appearance wise there wasn't anything all that remarkable about them outside of her being transformed and thus the earrings getting the dots to show how long she had before she transformed back into her civilian appearance.