Whether it is gold ornaments or gem jewelry, it must be carefully cared for and cleaned regularly to keep the luster bright and complete. 1. Don't wear jewelry when exercising or doing heavy work to avoid collision or wear. 2. Don't put all kinds of jewelry in the same drawer or jewelry box at will, because all kinds of gems and metals have different hardness, and mutual friction will lead to wear. 3. The jewelry that you often wear should be checked once a month to see if it is worn or loose, and then repaired. 4. Fragile gems, such as emeralds, are easily broken, so be careful when wearing them. 5. Don't wear a jewel with air holes in the kitchen or where there is steam, or the jewel will change color after absorbing steam and sweat. Gold ornaments and silver ornaments, like other jewelry, will lose their luster as long as they are stained with oil or sweat secreted by the human body. Therefore, jewelry that is often worn should be cleaned once a week. Solution to jewelry cleaning: Most jewelry cleaning agents contain ammonia water, which can not only clean gems, but also make metals brighter. Amonia is safe for most precious stones, except pearls and stones with pores (such as turquoise and flash mountain clouds). Clear water: mild soapy water and soft brush are the simplest and most convenient cleaning methods. In addition, jewelry can also be washed with water. After cleaning, the jewelry can be dried on a towel without cotton wool. Wax-free dental floss or toothpicks can remove dirt on gems and between claws. Be sure to note: 1. Never use bleach. Chlorine in bleaching water will pit the alloy, decompose the alloy and even corrode the weld. Because the water in the swimming pool contains chlorine, it is not advisable to wear jewelry when swimming in the swimming pool. 2. Avoid using washing powder, detergent and toothpaste containing abrasives. 3. Do not boil in clean or sulfuric acid. 4. Ultrasonic cleaning can avoid the danger of jewelry being washed away. It can be used for diamonds, but it is not suitable for some colored gems. 5. Don't wash with boiling water. The physical properties of diamonds are relatively stable and can be washed with boiling water. However, some precious stones (such as emeralds and amethysts) are very fragile and easily affected by drastic temperature changes, so boiling water should be avoided as much as possible.