Clean and soak in water for 30 minutes. If there is dirt on its surface due to long-term wear, this method can be used to remove it.

Polishing with frosted paper;

Try diluted oxalic acid;

Toothpaste wiping and water cleaning;

If you really don't feel at ease, you can go to the jewelry store and polish it with a machine. It's very cheap.

Jewelry expert Dr. Hao suggested:

Emerald is very resilient, but it still needs careful maintenance.

Jade is a symbol of elegance and sacredness. If you are exposed to grease for a long time, the luster will become dim. Therefore, when wearing jade, keep it clean and often wipe it with a soft cloth.

After being carved, jadeite is often waxed to increase its beauty. Therefore, jadeite can't contact with organic solvents such as acid and alkali. Even if you don't wax, because it is a multi-mineral aggregate, you should avoid long-term contact with acid and alkali. In addition, jadeite should not be put in the box for a long time, and it will "lose water" and dry after a long time. Jade should always avoid high temperature, because high temperature can easily make it lose moisture, so in cool summer, when taking a hot bath in the sauna, please take off your beloved Cui Cui. In cool summer, please soak jade in water for 30 minutes once a month.

I hope it will be adopted and helpful to you.