1. Drop the finest polishing agent (such as ordinary green oil) on the wool felt? Drop a few drops of sewing machine oil on the table and wipe the jewelry back and forth, and it will be shiny.

2. Apply a layer of colorless nail polish before gold and silver jewelry. Can make the surface luster of gold and silver jewelry lasting.

3. The best way to maintain silver jewelry is to wear it every day, because human oil can produce natural and moist luster.

4. The real way to prevent the surface oxidation of silver jewelry is electroplating. At present, the commonly used methods are silver plating, rhodium plating, palladium plating and so on.

5. If the silver jewelry is not treated and collected after wearing, it is very likely that the silver jewelry will turn black. At this time, you should use a small jewelry brush to clean the fine seams of jewelry, then drop a drop of silver emulsion on the paper towel to wipe off the black oxide on the surface of jewelry, and then use a silver cloth to restore the original brightness of jewelry.

Extended data:

Cleaning method:

In order to protect the luster of gold jewelry, a thin layer of nail polish can be coated on it.

If there is a black silver film on the surface, 2 grams of salt, 7 grams of baking soda, 8 grams of bleaching powder and 60 ml of clear water can be used to make a "gold cleaner". Put the gold jewelry in a bowl, pour the detergent, take it out after 2 hours, rinse it with clear water (preferably not hard water), bury it in sawdust to dry, and then wipe it with a soft cloth.

Ring inlaid with gems Roll a piece of cotton with a matchstick, soak it in a mixture of toilet water and glycerin, scrub the frame, and then polish the ring with flannel. Never scratch with sharp objects such as blades.

Salt and vinegar are mixed into a cleaning agent, which can be used to wipe pure gold jewelry and make it last forever.

Toothpaste wiping or scrubbing with hot rice soup can also restore the luster of gold jewelry.

Mixing soot with the same amount of vegetable oil, and putting gold jewelry in it for scrubbing will make gold jewelry shine.

Of course, it is recommended to send it to a bigger gold shop with specialized technicians, reagents, ultrasonic cleaning and other equipment for cleaning.

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