American Warehouse Taobao King

  Pearl is a naturally formed substance. Of course, artificial pearls can also be synthesized, but natural pearls are still an important category of organic gemstones. Naturally formed superb pearls are no less valuable than diamonds of the same weight? Moreover, natural pearls are not comparable to those of artificially produced wastes in terms of appearance and quality.

  Naturally, not every sea pearl can be called a fine product. The criteria for judging pearls are no worse than those for diamonds. The first criterion for evaluating the quality of natural pearls is size, not to say that the bigger the better, but the quality of the pearl if the size reaches a certain standard. Generally speaking, the standard should be one centimeter in diameter. If it is too large, it is inconvenient to wear, and if it is too small, it does not look good. Therefore, a natural pearl with a diameter of one centimeter is the best standard.

   The second scoring standard is that the shape of natural pearls should be round enough, because the formation of pearls is because the sand enters the body of crustaceans, which makes crustaceans feel very itchy. Therefore, a natural pearl powder is secreted, and the sand is wrapped into a round pearl, which can reduce the stimulation to the living body, so the shape of the natural pearl is beyond the control of human beings. Some pearls are oval, others are strangely rounded, and even two pearls are joined together.

   These irregularly shaped pearls are all defective and can only be used to make pearl powder and cannot be used to make jewelry products. So the second very strict criterion is whether the roundness of the pearl is perfect.

  The third criterion is the color of pearls, although there are probably so many standard colors for naturally formed pearls. The best quality is of course black pearls, and the black concentration of black pearls is also a criterion for judgment. Black pearls are very rare, and they are also the most expensive among pearls. Just like blue diamonds, they are the best of the best.

  The second color is pink. The slight redness in pink is the second grade of pearls. Some people may say that pearls are pink. There is really because pearls are crustaceans because sand enters the body, secretes a pearl element, and wraps the sand to form pearls. As for the color, it depends on the type of creature, just like abalone can have a lot of various colors in abalone shell, like a rainbow, very beautiful and bright, black pearls can be formed, can't pink pearls be formed?

  The third grade is white pearls. The color of white pearls must be pure and divided into several grades. The fourth criterion is the quality of pearls. Not only the weight statistics, but whether the mass density of the pearl itself is qualified? This is also an important means of judging natural pearls and synthetic pearls.

  Because the formation time of natural pearls is very long, even several years, decades and hundreds of years, the density is very large. If you look at the pearl anatomy under a microscope, you can see the plane screenshot of the pearl. There is a kind of sand that wraps around like an annual ring, so the hardness of natural pearls is very hard.

  The following four points are the most important for judging the quality of a pearl. There are also some criteria that Yang Yong does not know, but knowing the four criteria is enough to judge the quality of a pearl. Moreover, the number of pearls that this big clam killed was very large. What surprised Yang Yong most was that there were a large number of black pearls in these pearls. Moreover, the height has reached the standard of one centimeter, and the degree of roundness is rare in the world. What is Yang Yong doing? Although it is picking up **** and making a fortune. However, Yang Yong holds a large number of precious metals and natural gemstones in his hands.

   And his vision is very unique. After everyone was surprised and excited when they saw the pearls and then calmed down, Yang Yong ordered people to clean the various impurities on the pearls with clean water. Then wrap it in a towel and roll it back and forth to clean all the body tissues on the pearls. Then all the pearls are collected in a clean cardboard box and placed under the spotlight to start the standard of cheap pearls.

   Or to say that Anna's luck is against the sky, and the number of pearls produced in the discovered clamshell has reached more than 500. Large and small, only a small part of the pearls are defective and irregular in shape, and the rest are some top-quality rounded pearls. And the most incredible thing about these pearls is that there are more than 300 black pearls, both big and small, and it is not uncommon for them to reach the standard of more than one centimeter.

  Although Yang Yong does not have a professional machine for evaluating the roundness of pearls, he has a caliper in his hand to preliminarily estimate whether the roundness of pearls is qualified. Through the detection and visual inspection of various tools, the number of selected black pearls reached 200, and the number of white pearls reached 150.

  These 350 pearls can be called the best, and they are very valuable, with a diameter of more than one centimeter. The degree of roundness is very rare. As for the remaining pearls, although there are some defective products with irregular shapes, only pearl powder can be made. The smallest diameter of the remaining small pearls is equivalent to a sesame seed, and the largest diameter is only six millimeters. It is possible to make a pearl necklace, but it is not qualified to make a few pearl jewelry.

   When Yang Yong spent more than an hour, his eyes became sour, and the 350 pieces of superb pearls that he selected and deleted were presented to the whole family. Everyone can't help but sigh that nature is really amazing, and it can grow such strange organic creatures, and the appearance is so perfect. In particular, the gloss is brighter than any naturally formed pearls Yang Yong has seen, and it looks more reflective than diamonds and looks like a mirror. From this, you can see why natural pearls are so expensive? It's so bright! In fact, the brightness of the black pearl reflection is very dazzling.

  Since jewelry is attractive to men, there is still some resistance, but for women, jewelry is equivalent to a woman's life. No woman can resist the temptation brought by diamond pearls, and the two mistresses of the Yang family are also mortals. When 350 top-quality pearls appeared in front of her, the hostess almost turned into a werewolf, staring at these top-quality pearls with red eyes and drooling eyes.

   Yang Yong couldn't help but smile bitterly in his heart when he saw this situation, and then waved his hand in front of the two hostess. Seeing the reaction of the two people, Yang Yong clapped his hands and pulled the two hostess who were caught in endless desires back to reality, and said with a wry smile.

"Mom, Anna, our family's jewelry can be said to be piled up in mountains, and the best gems can be seen everywhere. Is it so crazy? Isn't it just first-class black pearls and white pearls, look at your appearance as crazy as hungry wolves, it's so crazy. Scary."

   Hearing being scolded by her son Yang Yong like this, the old lady was so angry that she slapped Yang Yong with a slap in the face, baring her teeth, and then scolded Yang Yong by the ear. "Wings are hard, aren't they? How dare you scold your mother and tell you how to respect the elderly."

  Yang Yong's ears came from the heart-piercing pain, coupled with his mother's tantrum, Yang Yong was so frightened that his liver trembled, and he quickly said with a smile. "Mom, I'm not trying to wake you up, and then discuss what kind of jewelry products these pearls should be made of. Just enough, you and Anna should be divided equally."