1, hardness: real pearls are scraped with sharp tools, and will return to their original state without scratches after being touched by hands.

2, color: there are colorful in the sun, you can see the companion color and halo color when rotating.

3. Shape: Real pearls are not particularly round.

4. Taste: Pearl is calcium carbonate, which will decompose when burned (local tyrant identification method)

5. Another kind of pearl is made of pearl powder and real pearls. Strictly speaking, pearls suppressed by pearl powder are also real pearls. The most obvious thing is that the pressed pearls are all round because they are made of touch tools. Secondly, the weight of pressed pearls is heavier than that of real pearls.

6. The easiest way to identify true and false pearl necklaces is to look at the holes in the pearls. If the epidermis is raised, peeled off or not smooth, it must be a fake pearl, because the coating is uneven.

7. When the simulated fake pearl is rubbed or scraped with a knife, the skin will be worn or peeled off, while the natural pearl can scrape off the pearl powder with a knife. After scraping off the pearl powder, wipe off the surface of the pearl by hand. The skin of the real pearl is the same as before scraping.