1, put the diamond under ultraviolet light.

If conditions permit, you can take a look at the diamond under ultraviolet light. Real diamonds emit blue light under ultraviolet light, so it must be real. However, not all diamonds glow under ultraviolet light. Therefore, the fact that a diamond does not shine does not necessarily mean that it is fake, and it needs to be verified again by other means.

2. Look for signs printed with 925, 900 or 800 on silverware.

Usually, silverware we buy in formal places will have some digital signs on it, which is almost universal all over the world. These identification numbers are 925, 900 or 800, representing the purity grade of silver. 925 indicates that the purity is 92.5%. So counterfeiters may ignore this. Of course, some counterfeiters may also make marks, so having a mark does not necessarily mean it is true. However, if your silverware shows that you bought it in a famous brand, but there is no such sign on it, it is fake.

3. Check whether you can smell sulfur or any metal on the silver jewelry.

If you own silverware, you can tell its authenticity by its smell. Smell the silverware in your hand carefully in a good air environment. If you smell sulfur or other metals, it's probably fake. Because silver is tasteless.

4. Diamond fire test.

By using the most common lighters in life, we can identify the authenticity of diamonds. Just burn the diamond with a lighter for about 30 or 40 seconds, and then throw it into the cold water prepared in advance. If it is a real diamond, it will keep its shape unchanged, because a real diamond is very hard. Fake diamonds may break.

5. Use a powerful magnet to attract your gold and silver.

In order to increase the weight of fake gold or fake silver, criminals may add a lot of iron or other magnetic metals to their products. Gold and silver are not magnetic. So you can try to test gold and silver with magnets. If it is magnetic, it is fake, or it is added with iron.

6. Breathe into the diamond.

You can also try to do a very simple thing with diamonds to identify the authenticity. Just breathe hot air into it. If you find your diamond fogging like a mirror in your bathroom, it will soon disappear, which means your diamond is real. But if the fog on it takes a long time to disappear, it is false.

7. Put gold or diamonds in a glass of water.

Usually the density of fake diamonds and gold is lower than that of real ones. Therefore, the easiest way to verify them is to throw them into cold water. If they are floating, they must be fake. But what sinks to the bottom is not necessarily true, and we still have to look further in other ways.

8. Take a pearl and gently rub it on your teeth.

Most pearls are not perfect. There are almost always defects, such as shape problems, slight dents or slight color cast. So you can check your pearls. If they look too perfect, there are only two possibilities, either fake or extremely expensive pearl necklaces. On the other hand, you can rub a pearl on your teeth to feel it. Fake pearls will make you feel smoother.