1, avoid exposure. Lapis lazuli is beautiful in color, but some behaviors will darken its color. One is exposure to the sun. Lapis lazuli exposed to the sun for a long time is easy to lose moisture, resulting in dim color, poor gloss and loss of its original aesthetic feeling. If you want to properly maintain lapis lazuli, don't wear lapis lazuli outdoors in summer, and don't put it in direct sunlight when you don't wear it.
2, avoid acid and alkali substances. Acid and alkali substances will have a certain corrosive effect on lapis lazuli, so lapis lazuli should not touch substances containing acid and alkali such as shampoo, shower gel and soap.
Lapis lazuli is afraid of bumping. Like many jewels, lapis lazuli will be broken or scratched by gravity impact or friction with sharp objects, so it should be stored separately.