Under normal circumstances, you can gently wipe jewelry with cotton (or a small brush, such as an old toothbrush) dipped in a few drops of warm water with neutral detergent. After the dirt is removed, the jewelry is washed in another bowl of clear water, and then dried in a ventilated place, so that the jewelry restores its bright color. However, it is worth noting that when topaz, amethyst, opal and other jewelry are stained, it is not advisable to wash them with warm water, brush them with a brush dipped in soapy water, then wash them with clear water and dry them before storing them. Necklaces, earrings, pendants and other places with spring devices should also be cleaned and lubricated before storage to keep them clean and flexible. Please refer to the following for specific maintenance methods:

I. Maintenance of Gold Jewelry

1, in order to protect the luster of gold jewelry, you can coat it with a thin layer of nail polish.

2. 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 water can be used to prepare 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.

3. Ring with gemstones Roll a piece of cotton with popsicles or matchsticks, soak it in the mixed solution of toilet water and glycerin, scrub the border of the gem, and then polish the ring with flannel. Never scratch with sharp objects such as blades.

4, salt and vinegar mixed into a cleaning agent, use it to wipe pure gold jewelry, can make it durable.

5. Toothpaste wiping or scrubbing with hot rice soup can also restore luster.

6. Pure gold jewelry will react chemically when it encounters mercury, and white spots will appear. When cleaning, as long as you barbecue under the alcohol lamp for a while, it will return to its original color.

7. After wearing, gold ornaments often lose their luster due to stains and dust. At this time, just put the gold ornaments in a neutral detergent, soak them in warm water, and then take them out and dry them.

Second, how to maintain diamonds

Diamonds are sticky to grease, so they should be washed once a month to keep their luster. The following methods can be recommended:

1, cleaning solution cleaning method: use a small bowl or teacup to hold warm water, and mix a proper amount of neutral detergent in the water. Soak the diamond in water, brush it gently with a toothbrush, then wrap it with a sieve, rinse it with warm water under the tap (and finally pat it dry with a soft cotton-free flannel).

2. Cold water immersion method: use a small bowl or teacup, mix a proper amount of clean water with household Armenian water, immerse the diamond in the water for about 30 minutes, then gently brush the diamond in front, back, left and right with a small brush, then wave it in the water for a while, and then dry it with a paper towel after taking it out.

3. Quick cleaning method: buy a bottle of brand-name jewelry cleaning solution, together with the attached container, and clean the diamonds according to the instructions.

4. Other secrets of caring for diamonds: When doing housework, don't let the diamond jewelry be stained with chlorine bleach. Will not damage the diamond, but will make the inlay fade or change color. Don't wear diamonds when washing dishes or doing rough work. Although the diamond is hard, according to its grain direction, it may be damaged by hard impact. Take your diamond jewelry to the jeweler once a year to check whether the inlay is loose and worn, and then fix and polish it again.

Third, the maintenance of jade.

Emerald is very resilient. However, some consumers misunderstand this function as not afraid to fight. I don't know that jade also needs careful maintenance to keep its feminine beauty unchanged.

1, when wearing jade jewelry, try to avoid falling from a height or hitting hard objects, especially jade jewelry with a small amount of cracks. Otherwise, jade jewelry is easily broken or damaged.

Jade jewelry is a symbol of elegance and sacredness. If you are exposed to oil pollution for a long time, oil pollution will easily accumulate on the surface of jade jewelry, which will affect the luster of jade jewelry. Sometimes dirty grease will be filled along the gap of jade ornaments, which is very unsightly. So when wearing jade jewelry, be sure to keep it clean. Be sure to clean it with a soft cloth in a neutral detergent, dry it and polish it with a thick cloth.

3. After jade jewelry is carved, it is often coated with Sichuan wax to enhance its beauty. Therefore, jade ornaments should not be in contact with acids, alkalis and organic solvents. Even if it is not waxed jade ornaments, it should not be exposed to acid and alkali for a long time, because they are a collection of various minerals. These chemicals will corrode the surface of jade jewelry.

4. At present, there are many B-quality natural jadeite materials on the market, all of which are optimized products after acid soaking and glue injection. They are afraid of high temperature. So when cooking or working in other hot places, don't wear B jade jewelry, especially B jade bracelets. Otherwise, the filler (glue) in jadeite is easy to age and deteriorate, and at the same time, the acid-treated iron rust spots can be re-oxidized.

5, don't put the jade jewelry in the box for a long time, jade jewelry will lose water and dry for a long time.

Fourth, how to restore the former glory of Pearl?

Although the color of pearls looks good, they can't stand the test for a long time. Generally, after several decades, pearls will turn ordinary yellow and lose their beautiful luster. This is what the old saying goes, "people are old and yellow."

Why do pearl ornaments turn yellow after long use? This is mainly because the physical properties of aragonite minerals that make up pearls are unstable. Over time, it will become ordinary calcite. Aragonite and calcite have the same chemical composition, but their crystal morphology and luster are different. This is the reason why pearls change color.

There are some remedies after the pearl turns yellow, that is, soaking in dilute hydrochloric acid can dissolve the yellowed shell and make the pearl reappear its glittering and charming color. But if the color becomes very thick, it is difficult to reverse it.

Pearl jewelry will turn yellow if it is used for a long time, and will lose its luster if it is not properly maintained. Pearl should avoid contact with sweat and vinegar, because both sweat and vinegar are acidic and will corrode carbonate. Pearls are also afraid of wear and tear and cannot touch rough materials. Pearl should also avoid contact with perfume and powder hair gel, because powder is easy to adsorb on the pearl surface, which will fill the unevenness of the pearl surface and reduce its brightness.