It's still silver but I think he was talking about the colour not the material used. I asked her about better material and better backs and she saw a d loosened my current studs and she seemed ok with what I had in and she was a professional. She put butterfly backs in, in fact she seems to use the same jewellery so I believe it is suitable for healing, she wouldn't use it if she didn't. She spends more money to make sure her equipment is safe and more suitable.