Burning with alcohol lamp If the gold pendant becomes discolored, you can burn the discolored white or white spot with alcohol lamp, and then wipe it with a dry cloth after cooling to restore the original golden luster of the gold pendant.
Jewelry store maintenance If the gold pendant is seriously discolored, it is best to send it to the jewelry store for treatment. Try not to burn it yourself with a lighter. If the combustion is not complete, it will lead to the blackening of the gold pendant.
Note: Under normal circumstances, high-purity gold will not fade, but if it comes into contact with certain chemicals, it will fade and look faded, so avoid touching products containing chemicals every day.