1, gold discoloration (white, black) is related to chemical substances, such as cosmetics and perfume. Because everyone knows that cosmetics contain lead and mercury, if gold comes into contact with lead, it will react with lead, and when it comes into contact with mercury, it will produce black spots and white spots.

Solution: going to the maintenance department or the brand service point is not enough (burning gold), and this part can be removed.

Prevention: There is a saying in the jewelry industry: "Put it on last, take it off first". That is to say, before going out, after making all preparations, take jewelry before going out, and the first thing to do when you go home is to take it off.

2. The gloss of gold jewelry will decrease after a long time. This kind of thing is inevitable. The gold jewelry you usually wear, some substances in sweat, the oxidation of air, and even the use of soap shower gel when taking a bath will also reduce the gloss of jewelry.