What jewelry is evil?

What three people upstairs said can ward off evil spirits, but its premise is that it must be lit, and what is not lit can also be done, but the effect is different. You can also use silver ornaments, and you'd better go to a specialty store. There is too much fake silver jewelry now.

I brought silver ornaments. I was followed by dirty things, and I have been wearing silver ornaments since then. So far, nothing has happened.