Pearls are naturally occurring substances, and of course they can be synthesized artificially, but natural pearls are still an important category of organic gemstones. Pen, fun, pavilion www. biquge。 infoThe value of the finest naturally formed pearls is no worse than that of diamonds of the same weight, and naturally produced pearls are not comparable to those artificially produced waste, both in terms of condition and quality.

Not every naturally formed sea pearl can be called a fine product, and the standard of pearl judging is not much worse than that of diamonds. The first criterion for commenting on the quality of natural pearls is the size, not that the bigger the better, but that the size reaches a certain standard or the best pearl. Generally, the standard of size should be one centimeter in diameter, too big to wear inconvenient, too small and not good-looking, so to achieve a diameter of one centimeter of natural pearls is the best standard.

The second criterion is that natural pearls should be round enough in shape, because pearls are formed because sand enters the crustacean's body, causing the crustaceans to feel very itchy. Therefore, secrete a natural pearl powder, wrap the sand to make the pearl round, so as to reduce the stimulation of the living organism, so the shape of the natural pearl is not something that humans can control. Some pearls are oval in shape, while 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, not to be worn into jewelry. So the second very strict criterion is whether the roundness of the pearl is perfect.

The third criterion is the color of the pearl, although there are probably a few of the most standard colors of naturally occurring pearls. The best quality is, of course, black pearls, and the black intensity of black pearls is also a criterion. Black pearls are very rare and the most expensive of all pearls, just like blue diamonds, they are the best of the best.

The second color is pink, and the slight redness in pink is the second grade of pearls, and some people may say that pearls are pink. It is true that pearls are crustaceans because the sand enters the body and secretes a pearl element, which wraps the sand to form a pearl. As for the color depends on the type of creature, just like abalone can abalone shell has many different colors, like a rainbow, very beautiful and vivid, black pearls can be formed, pink pearls can't be formed.

The third grade is white pearls, the color of white pearls should be pure and divided into several grades, and the fourth criterion is the quality of the pearl. It is not only the weight statistics, but whether the mass density of the pearl itself is qualified, which is also an important means to judge natural pearls and synthetic pearls.

Because the formation time of natural pearls is very long, even years, decades, or hundreds of years, the density is very large. If you look at the pearl dissection under the microscope, you can see that the flat screenshot of the pearl shows that there is a kind of sand wrapped around like growth rings, so the hardness of natural pearls is very hard.

The following four points are the most important to judge the quality of a pearl, and there are some standards 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 came out of was very large, and the most incredible thing for Yang Yong was that there were a large number of black pearls in these pearls. And the size has reached the standard of one centimeter, and the degree of roundness is also rare in the world, what is Yang Yong doing? However, Yang Yong has a large number of precious metals and natural gemstones in his hands, and can be said to be an expert in the identification of half of the precious metals and gemstones.

And the vision is very unique, after everyone saw the pearl surprise and excitement and then calmed down, Yang Yong ordered people to clean the various impurities on the pearl with clean water. Then wrap it in a towel and roll it back and forth, clean all the body tissues of the clams on the pearls, and then collect all the pearls into a clean cardboard box and put them in the spotlight to start the standard of affordable pearls.

Needless to say, Anna's luck was against the sky, and the number of pearls produced in the large clams found reached more than 500. There are large and small pearls, only a small part of the quality is defective, irregular shape, and the rest are some excellent round pearls. And the most incredible thing about these pearls is that there are more than 300 black pearls, large and small, and there are not a few that reach the standard of more than one centimeter.

Although Yang Yong does not have a professional machine to identify 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, 200 excellent black pearls and 150 excellent white pearls were selected.

These 350 pearls can be called superb, and they are very valuable, all of them are more than a centimeter in diameter. The degree of roundness is very rare, and the remaining pearls, although there are some defective products with irregular shapes, can only be made into pearl powder. The smallest diameter of the remaining small pearls is equivalent to a sesame seed, and the largest diameter is only six millimeters.

When Yang Yong spent more than an hour, his eyes were sour, and the 350 pieces of superb pearls that were selected were brought to the front of the whole family. Everyone couldn't help but sigh that nature is really wonderful, and it can grow such a strange organic creature, and the condition is so perfect. In particular, the luster is brighter than any naturally formed pearl Yang Yong has seen, and it looks more reflective than a diamond, similar to a mirror. From this point, we can see why natural pearls are so expensive? It's really bright! In fact, the brightness of black pearls is very dazzling.

Since men say that jewelry is tempting, there is some resistance, but for women, jewelry is equivalent to a woman's life. No woman can resist the allure of diamond pearls, and the two mistresses of the Yang family are also mortals. When 350 of the finest pearls appeared in front of her, the hostess was about to turn into a werewolf, her eyes were red and drooling, staring intently at these finest pearls.

Seeing this situation, Yang Yong couldn't help but smile bitterly in his heart, and then waved his hand in front of the two hostesses. Seeing that the two people reacted, Yang Yong slapped his face, pulled the two hostesses who were caught in endless desire back to reality, and said with a wry smile.

"Mom, Anna, our family's jewelry can be said to be piled up, and the best gems can be found everywhere, as for so crazy. Isn't it just a first-class black pearl and a white pearl, it's scary to see how crazy you look like a hungry wolf. ”

Hearing that she was counted down by her son Yang Yong like this, the old lady was angry, and Yang Yong, who went up, was slapped and bared her teeth, and then grabbed Yang Yong's ear and scolded. "The wings are stiff, aren't they? Dare to count down your mother, how can you respect the elderly. ”

Yang Yong's ears came with a heart-piercing pain, and coupled with his mother's tantrum Yang Yong was really scared, so he hurriedly said with a smile. "Mom, I'm not going to sober you up, and then discuss what kind of jewelry should be made of these pearls, just enough of them, how good it would be for you and Anna to divide them equally. ”