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custom made gemstone rings Treatment and identification of pearls (부분 1)

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Since the color of pearls directly affects the price, the most common treatments for pearls are focused on improving the color of pearls. For different types of pearls, there are three treatments: bleaching, dyeing and color enhancement due to different preferences. The following are the explanations:

Bleaching is usually used for Japanese beads, because the body color of Japanese beads is white. The main purpose is to bleach the originally poorly colored pearls (usually yellowish pearls) into white to make them look better. The bleaching process may damage the surface structure of the pearl, making it easier to turn yellow or even crack. Although the current bleaching technology is quite advanced, if you use a magnifying glass to carefully observe whether the surface structure of the pearl is damaged, you can still detect whether the pearl has been bleached.

Enhancing color is a very controversial topic in the jewelry industry. Gold beads are the best example. In the past few years, a large number of gold beads appeared on the domestic market, like pure gold, yellow gold beads jewelry or bead chains in jewelry stores. The cabinet is shining, quite attractive, and the entire string of gold beads is quite expensive. 하지만, because a foreign jewelry magazine reported that most of the orange gold beads were treated with radiation, consumers were immediately discouraged. Many stores As a result, he was tragically killed.

There are also ways to distinguish the authenticity of pearls:

1. Take a look: Pearls have a specific gravity of 2.6 에게 2.78, which is heavier than glass beads or plastic beads, but shell beads and third-generation beads have similar materials, so this method is not suitable for identification.

2. Touch: Natural pearls feel cold to the touch and feel very solid to the touch, while imitation beads are mostly not as solid to the touch as natural pearls, and they are warm to the touch, not as cold as natural pearls.

3. Grind it on the teeth: remember to rub it gently. Natural pearls feel thick and rusty, while imitation pearls don’t.

4. Pick up two pearls and rub them against each other: Imitation pearls feel very slippery when rubbing against each other, while natural pearls are slightly rough. The rubbing action should be very light to avoid damage to the pearls.

 

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