Swarovski will fade, because most of Swarovski's jewelry is made of alloy, and the alloy will oxidize when exposed to air for a long time, and then it will fade more or less, but the jewelry just bought will begin to fade in a few days, which is not normal.

Whether the color fading of Swarovski is serious or not is related to the usual maintenance of jewelry. Don't bring jewelry when taking a bath or going swimming at ordinary times, and avoid jewelry from getting wet when it rains. Keeping jewelry clean and tidy at ordinary times and storing it in a dry environment can reduce the degree of fading.