The fading of Swarovski necklaces may be caused by wearing them for a long time or improper storage, which leads to dust on the surface and loss of luster. There are many solutions, and the following are some common solutions:

1. Take it back to the jewelry store and polish it again.

2. Prepare gold cleaner with 2g of salt, 7g of baking soda, 8g of bleaching powder and 60ml of clear water, put gold jewelry into a bowl, pour the cleaner, take it out after 2h, rinse it with clear water (preferably not hard water), bury it in sawdust to dry, and then wipe it with a soft cloth.