The naked eye recognition of pearls has the following five points:
1. Friction: Two pearls are gently rubbed against each other, which will have a rough feeling, while fake pearls will have a sliding feeling. (It is generally not recommended to rub two pearls. The surface of the pearl is very thin and fragile so as not to damage the skin of the pearl.)
2. Drilling: Observe whether the drilling hole is clear and clear, and the hole in the fake bead has pigment accumulation.
3, color: each pearl has a slightly different color, in addition to its own color with a matching color, but the color of each of the fake beads is the same, and
Only the true color, no color. Mainly white, yellow and black pearls that began breeding in France in 1960
4, cold feeling: the pearl has a cold feeling on the hand, the fake beads are not.
5. Shape, the shape of the pearl is naturally generated, but the fake beads are generally very round, which is made by the machine.
The bonding line has a brown bond line between the mother-of-pearl and the outer layer of the pearl. It is clearly visible from the direction of the hole in which the pearl is drilled.
In the core stripe nucleated cultured pearls, there are different stripes of transparency in the pearls, so the nucleated cultured pearls are placed in the dark, and with strong light transmission, different stripes of light and dark can be seen. Natural pearls and non-nuclear cultured pearls do not.
The surface pimples have nuclear cultured pearls and natural pearls. You can see the swell of small bumps or two beads when rubbed. These characteristics are the difference between imitation pearls.
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