Gold earrings may possibly include more nickel Should they be 14K and lower. On the other hand, 18K gold and above has fewer nickel as a result of large gold articles. For example, 22K gold contains lower than 0.1% of nickel, making it safer to wear than Many others. From https://andyzpbeg.ssnblog.com/31129107/getting-my-diamond-threader-earring-to-work