Put the pearl on the flashlight of the mobile phone, then turn on the camera function of the other mobile phone, aim the screen at the pearl and turn down the brightness. Natural pearls have a red halo, while fake pearls have no red halo and are very black because the surface coating is not translucent.
Natural pearls are irregular in shape and have special colorful fluorescent luster, that is, jade white, light blue, meat red and so on. Fake pearls are mostly regular spheres with monotonous color and no halo. You can also grab a handful of pearls with your hands and gently rub them so that the surfaces of the pearls rub against each other. If the sand is fine, it is natural pearls, while the surface of artificial pearls is often very smooth and has no sand texture.
Pearl maintenance method
1, pearls should not be kept in jewelry boxes for a long time, let alone sealed with tape. Let pearls breathe fresh air. It's best to take it out and wear it every once in a while. Pearls that are not worn for a long time are prone to yellowing.
2, when not wearing, pay attention to store pearls in a dry place, pearls are organic gems, if the storage environment is very humid, it will easily lead to deterioration, moisture, mildew and other problems.
3. It is best to wear and store pearls separately to avoid contact with other hard objects, so as not to scratch the pearl skin. The material of some clothes is too rough and it is easy to scratch precious pearls, so it is best to wear soft clothes when wearing pearls.