Generally speaking, semi-precious stones need degaussing, such as crystal, tourmaline, garnet, obsidian and Tianhe stone. And jade, diamonds, rubies, emeralds and other high-end jewelry do not need degaussing and can be worn directly.
Because crystal is a kind of gem with memory function, some negative energy may be recalled in the hands of consumers. Therefore, when wearing crystal ornaments for the first time, you should first degauss and eliminate negative energy to avoid negative effects on yourself.