PD is the abbreviation of palladium, and Pd990 means that the palladium content is not less than 990‰. The price of palladium: as of October 29, 2018, the price is 242 RMB per gram. PT is the abbreviation of platinum, which is also known as pure white gold, true white gold, or genuine white gold. AU, G, 18K, 24K represent gold. WG represents white gold. AG represents silver.

Maintenance of palladium jewelry:
1. It is preferable to wear it separately to avoid mutual wear and tear.
2. Jewelry items should be prevented from stretching, squeezing, colliding, and rubbing. They should be stored individually when not worn.
3. Regularly clean palladium jewelry. This ensures that the jewelry has the best shine and lasts longer.
4. All precious metals may leave scratches, and palladium is no exception. If visible scratches occur, take the palladium jewelry to a qualified jewelry store for polishing.
5. Try to avoid contact with bleach or irritating chemicals as much as possible.