Новини за бижута

jyp daughter Treatment and identification of pearls (below)

Публикувано на от Кингджи

Dyeing: There are two situations in which pearls are dyed. One is to make the color even, or to make the color more colorful for design needs. This situation is more commonly used in the jewelry design of freshwater beads. If it is based on this In this situation, the store will honestly inform consumers.

The other kind of dyeing is fish-eye mixed pearls, who deliberately dye pearls into another higher-priced color to deceive consumers. You need to be extra careful when buying. Especially before Tahitian black pearls were known to the world, many Japanese or freshwater pearls were dyed black and sold as black pearls. People now know more about black pearls, so this situation is not common, but you need to be careful when traveling abroad to avoid buying this dyed black pearl. Because black pearls are a kind of South Sea pearls, they are larger than Japanese or freshwater pearls. From the size of the pearls, it can be judged whether they are South Sea pearls. В допълнение, if you feel that the black pearls, especially the beads, are too dark in color or the surface of the pearl is shiny If it looks dull, you can suspect it is stained! Otherwise, it is best to ask the sales store to issue a guarantee certificate certifying that it is a natural-colored pearl. If the price is high, it is recommended to find a trusted laboratory to identify it, so as not to lose money.

The biggest difference between color enhancement and dyeing is that the color enhancement is to make the color of the pearl more prominent. Most of the method used is radiation irradiation, while the dyeing is to change the pearl that does not have that color into another color by dye. Radiation-treated pearls cannot be detected by ordinary instruments, so consumers are not recommended to identify them by themselves. It is best to find a laboratory or buy a pearl with an identification certificate that proves that its color is natural.

 

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