Silver ornaments are easily oxidized. Under the chemical action, the oxidation reaction of pure silver bracelet will make it yellow or black and lose its luster. However, these are actually on the surface of the sterling silver bracelet, and the inside of the sterling silver bracelet is still the same as before, without much oxidation reaction.

Be careful not to use silver washing water to clean sterling silver ornaments, because it will corrode the surface of sterling silver. Although it will soon restore its brightness, it will soon turn yellow and black.