Jade

Jade

The first-class jade is moist, transparent, and has a sense of grease. It feels warm in the hand. The main method to distinguish the true from the false is to use a magnifying glass or a microscope to see that the inner part of the jade has a fiber interwoven structure and fine particle size, while the artificial glass has no structure and bubbles can be seen. You can also carve jade with a knife in an inconspicuous place. The one that can carve is fake jade, and the one that can't carve is real jade. As the saying goes, "gold is valuable, jade is priceless.". As the top grade Hetian jade is becoming rarer and rarer, it can reach tens of thousands to hundreds of thousands of yuan per kilogram, while ordinary Qinghai white jade and Russian white jade only cost thousands of yuan per kilogram, so some people use it as Hetian jade. The minerals of these jades are basically the same as those of Hetian jade, but the surface color is gray and not soft, and it will be dimmer after a long time.

Introduction to jade

Old jade and new jade can be distinguished from each other in two ways. There is a layer of oxidized jade skin on the surface of old jade, commonly known as "Baojiang", which looks like the skin of autumn pear. It is obviously different from the natural color of jade, but new jade does not. From the perspective of carving themes, ancient jade is a symbol of rank and power, with more flowers, birds and figures in mythology, such as dragons and phoenixes. And the new is generally auspicious theme. jade has been closely related to Chinese culture since ancient times. in Chinese people's mind, jade is a symbol of auspiciousness, so Chinese people like to use jade to protect themselves, keep peace and ward off evil spirits, and even bury them with jade; while Westerners mainly appreciate the elegant, mysterious and romantic color of jade.

Classification of jade

Jade can be divided into nephrite and jadeite, which are two different minerals. The colors of nephrite are translucent white, yellow, green and black, and the color distribution is uniform; the colors of jadeite are mainly white, purple, yellow and green, and the color distribution uniformity is different among different germplasms. the vast majority of nephrites produced in China are nephrites, while "Lanzhi white jade" is the treasure of nephrites, with fine texture and white color. Many jade works are carved from nephrites. jadeite appeared only after the Ming Dynasty, and its main origin is Myanmar, which is more rare than nephrite. As jadeite is superior to nephrite in quality, color and price, jadeite jewelry on the market is mainly made of jadeite, and the demand of consumers is also very large. So we will focus on jadeite jadeite.

Appreciation of jadeite

To appreciate jadeite, we should pay attention to its color and germplasm, which can be divided into color, transparency, clarity, cutting and crack. Generally, we will start with its color.

colour

Color is the most important factor affecting the value of jadeite. The color of jadeite can be evaluated from the following four aspects: Purity: purity refers to the proportion of primary color and secondary color of jadeite. Taking green jadeite as an example, pure green is the best, green with yellow or blue is the second, and gray is the worst. appropriate shade: when it comes to the depth of color, the thicker the better. However, too thick color will cause adverse effects and reduce the quality of jadeite. to be bright: the brighter the color of jadeite is, the more attractive it will be. The more proportion of gray or black in jadeite, the darker the color will be. To be even: the more uniform the color distribution is, the better the value will be.

transparency

The transparency of jadeite affects the refraction of light, thus affecting the overall aesthetic feeling. When the light enters the transparent and delicate jadeite, it will reflect a beautiful light, making people feel that the jadeite is crystal clear and transparent, greatly increasing its beauty. On the contrary, if the light meets a jade with low transparency and rough texture, it will reflect rigid light, greatly reducing the attraction of the jade.

Cleanliness

Cleanliness refers to the defects contained in jadeite, mainly white and black, which are caused by other minerals contained in jadeite. Relatively speaking, black defects are more harmful than white. The less impurities in jadeite, the better.

cut

The processing of jadeite products can be divided into two categories: bare body and carving. As there is no cover on the surface of the finished product, there is a high requirement on the raw materials. In addition to no cracks, the proportion of cutting, the thickness and symmetry of the product are also very important, which can affect the appearance of the finished product. For example, the "egg surface" with good cutting should not be too thick or too thin, and the "bu" position should be in the middle, and the proportion should be moderate. the evaluation of patterns mainly measures the aesthetic feeling and the fineness of carving. Usually, jadeite with cracks will be processed by carving to cover up its defects.

crackle

Cracks can greatly reduce the value of jadeite. If there is a crack in the jadeite ornament, a little collision may crack along the crack. Therefore, you need to be extra careful when buying jadeite ornaments. Generally speaking, it is easy to detect the existence of cracks when using a flashlight. high quality jadeite can be sold at a considerable price, but the supply on the market is limited. In order to obtain better profits, some businessmen do not hesitate to carry out manual processing for jadeite. So there are goods a, B and C on the market. artificial treatment of jadeite

C goods

C goods refer to the artificial colored jade. The method is to use high temperature and high pressure to infiltrate the dye into the original colorless jadeite, so that all or part of it can be dyed into emerald green or purple, but the color will turn pale and dull with time.

B goods

Product B refers to the jadeite that has been chemically removed the surface defects, impurities and yellow parts, only the original green and white elements are retained, and then the epoxy resin glue is injected into the jade for consolidation, so that the whole jadeite looks more transparent and bright. As the interior of the jade has been damaged in the process of chemical treatment, the structure becomes loose, so it is easy for goods B to show cracks on the surface. In addition, if the dye is added in the process of treatment, it is called B + C goods.

Natural jade

A goods

A goods refer to natural jadeite without artificial chemical treatment. the predecessors of China's jewelry industry have summed up a lot of experience about jadeite in the long-term jadeite processing and production practice, and expressed these characteristics of jadeite in the form of concise aphorism. Remember these maxims, and can understand and experience the profound connotation, will benefit for life.

No color under the lamp

In fact, any jewelry should not be under the lamp color quality assessment. For jadeite, this is particularly important. This is because the color of jadeite, especially the flash gray, flash blue and oil blue, is much better than the color effect under natural light. Therefore, we can only see the clefts of jadeite, the length of water head, the degree of reflection or other characteristics under the light. We should observe and evaluate the green of jadeite in natural light. For high-grade jadeite, the price difference is more than ten times. For example, the quality, style, size, water quality and defects of a 500 000 yuan emerald ring face and a 5 million yuan emerald ring face are first-class and impeccable. The key to the price difference between the two lies in the level of green. How to recognize and distinguish the differences of emerald green is very important, at least to have seen and experienced. "See more and buy less" for the purchase of jadeite raw stone, "see more" is a process of choice, a process of comparison, a process of accumulating and verifying experience, and a premise of "buy more". "Buy less" does not mean not to buy, but to remind you to "see" before you buy. "Better buy a line than a large area" for the green shape characteristics of jadeite original stone, "a line" - belt green and "a large area" - skin green are two forms of the same green shape, which is the difference between the "line" - vertical and "piece" - horizontal. The thickness of "line" is known, but the depth is unknown; the area of "piece" is known, but the thickness is unknown. The key to the maxim is to remind people not to be confused by the green "more" and "less" on the surface of jadeite, but to recognize the nature of green "standing" and "lying". Therefore, it's not true that you don't buy a large green jadeite when you see it, but it's a reminder not to have excessive expectations for the thickness of green.

There's water everywhere

The so-called "dragon" actually refers to the green in jadeite. That is to say: in general, whether in the thickness or transparency of the texture, the parts with green are better than those without green. Of course, sometimes the difference between emerald green and earth is too strong, just as the next Maxim says. The green of jadeite is closely related to the green of jadeite. Generally speaking, when the green water is good, the land is usually not too bad, and vice versa. The motto mainly reminds people: don't ignore the particularity of emerald green. Although not every "shit" has high-end green. But there's good green in "shitty land.".

No grain, no shade

"The book of Rites" says: "if you don't carve a Dagui, it will be beautiful." In fact, high-grade emerald green is usually in the form of "plain" body to show its natural essence. For example, the second-hand goods such as moving fingers and feather tubes all belong to "plain living". If there is a pattern carved, there must be something strange under the beautiful pattern. Therefore, there is a saying in the industry that "no grain, no shade". The same is true of modern jadeite products.

Cool eyes and green eyes

The so-called "fried green" refers to a kind of "fake jade" with color added, which is an old trick. Nowadays, the means of counterfeiting include "shower", "bath" and "coating". Of course, any fraud may succeed for a while, and will not never be revealed. The old adage was for people in the industry. It was to remind people to pay attention to the feeling at first sight and not to let go of any doubts. Therefore, for consumers, might as well also "cold" a bit. We must go to the shops with good reputation and quality assurance to buy jadeite.

Aesthetic appreciation of Chinese jade

Chinese PinYin : Yu De