Gold bracelets were originally bright in color and golden yellow. After burning with fire, it was placed in the water hydrochloride and invaded a few points. What's the matter with the color.

What is the gold content of the bracelet? If it is 18K gold itself is lighter than pure gold, but the brightness will be higher. Many 18K gold is in order to brighten itself, and the appearance is polished or there are 24K gold -plated layers. Once the hydrochloric acid is burned, the surface polishing will be destroyed, or the destruction of the plating layer will cause the color to fade. If you want to identify the authenticity, it is best to go to the authoritative department. Personal identification cannot identify high super -fake processes.