Color is the first factor to evaluate jadeite, and the standard to be achieved by the color of good is positive, strong, yang, and even.

Positive: It refers to the range of hues, according to the ratio of the primary color to the secondary color, that is, to be pure green, not mixed with other colors. For example, there is often a mixed oil blue color in the oil blue, and the value will be reduced.

Thick: refers to the depth of color, as far as emerald green is concerned, the concentration is best between 70% and 80%, and 90% is already too strong.

Yang: refers to the brightness of the jadeite color, and the brightness of the jadeite is mainly determined by the proportion of green and black or gray in the jadeite. The color will be bright if there is more black or gray, and the color will be gray and dark, and connoisseurs often take a figurative approach to represent the color of the bright sun. For example: boxwood green, parrot green, onion heart green, pepper green, all refer to the color of fresh yang. Spinach green, oil green, river green, and black green refer to dull dark green.

The fresher the jadeite, the higher the natural value.

Even: refers to the uniformity of the color distribution of jadeite. The color distribution of jadeite is generally uneven, and it is not easy to get jadeite with uniform color distribution.

The best color: should be pure green, green concentration in 70%-80%, bright Yangyang, uniform color distribution, this kind of high-grade jadeite, connoisseurs are used to call the old pit species.

Planting water has always been a key to the choice of jadeite by jade friends, what are the jadeite species? Pingzhou Jade would like to make an introduction to the majority of consumers:

(1) Laokeng jadeite: commonly known as "Laokeng glass" in the commercial world, usually with glass luster, its texture is delicate, pure and flawless, and the color is pure, bright, rich and uniform emerald green; The jadeite jadeite grains of the old pit species are very fine, so it is extremely difficult to see the "jadeite" with the naked eye; The old pit jadeite is translucent and transparent under the irradiation of light, and it is the top grade or the best in the jadeite. In previous jewelry auctions or trade fairs, its prices have repeatedly hit highs and have been admired by the world.

(2) Ice jadeite: the texture is similar to the old pit species, colorless or less colored, the ice species is characterized by a good luster on the outer surface, translucent to transparent, clear like ice, giving people a feeling of ice and jade. If there is a flocculent or intermittent vein-like blue color in the ice jadeite, such jadeite is called "blue ice", which is a common variety of ice jadeite. Ice jade is often used to make bracelets or pendants. There is no obvious difference in the value of colorless ice jadeite and "blue ice" jadeite, and its actual price mainly depends on people's preferences. The ice species is an upper-mid-range or mid-range level of jadeite.

(3) Water jadeite: its jade structure is slightly coarser than that of Laokeng glass, and its luster and transparency are slightly lower than that of Laokeng glass and similar or equivalent to ice. It is characterized by being transparent like water but with a soft luster, and a fine look at its internal structure, you can see a little "ripple", or a small amount of dark cracks and stone lines, and occasionally very few impurities and cotton willow. Some experts say that water jadeite is light or colorless, slightly worse quality of old pit jadeite. It is a variety of jadeite in the middle and upper grade, and occasionally in the upper grade.

There are four common situations of water jadeite: colorless is called "clear water"; It has a light and uniform green color, which is called "green water"; It has a uniform and light blue color, which is called "blue water", and a light and uniform purple color is called "purple water", and the price in the market is based on clear water and purple water, followed by green water and blue water.

(4) Violet jadeite: This is a purple jadeite with a color like a violet flower, and the jewelry industry also calls violet "Tsubaki" or "spring color". Jadeite with "spring color" has high, medium and low grades, not as long as it is violet, it must be valuable, it must be of high quality, and it must be combined with quality, transparency, process production level and other quality indicators for comprehensive evaluation.

The purple on the jadeite is generally not deep, and the jadeite world divides the purple in the jadeite into pink purple, eggplant purple and blue purple according to the different shades of purple hue.

Purple jadeite will appear darker than it actually is when viewed under yellow light, so it is better to view it in natural light, and this should be noted. For the evaluation of this variety, it is better to have good transparency, delicate and flawless structure, and uniform pink and purple; If purple is the base, it has green on it, which is also very elegant, and should be of the highest grade.

(5) Green jadeite on a white background: The characteristics of green on a white background are that the bottom is as white as snow, and the green looks very bright on the white background, and the white and green are distinct. This variety of jadeite is very easy to identify: the green color is patchy on a white background, with poor transparency, opaque or slightly transparent; The jade pieces have a fiber and fine-grained inlay structure, but the fine-grained structure is the main one; Observed under a microscope (magnified 30~40 times), there are common holes or uneven structures on the surface.

Most of the varieties are mid-grade jadeite, a few green and white, green and bright and good color shape, color and bottom are very coordinated, up to the middle and high-end grades

(6) Cyan jadeite: the color is emerald green and vein-like distribution, which is extremely irregular; The texture is thick and fine, and it is translucent. Its base color is light green or other colors. Such as light gray or bean green, its structure is mainly fiber and fine-grain-medium grain structure. Cyan jadeite is characterized by uneven green color. Some are denser, some are more sparse, and the color is dark and light. There is also a structure in cyanine jadeite that is only granular, and the water sense is insufficient, because of its rough structure, so the transparency is often very poor. Cyanine is a mid-range or low-to-medium grade jadeite.

(7) Red jadeite: Bright red or orange-red jadeite, which is easy to see in the market. The color of the red jade is formed after the formation of jadeite crystals, which is caused by the dissemination of hematite. It is characterized by bright red or crimson, good red jade, with glass luster, its transparency is translucent, red jade products are often mid-range or low-end goods, but there are also high-end red jade: bright color, delicate texture, very beautiful, is loved by people, with auspicious color of jadeite.

(8) Yellow-brown jadeite: jadeite with color from yellow to brownish yellow or brownish-yellow, with a low degree of transparency. This range of jadeite products in this range of colors can be found everywhere in the market. Their color is also formed after jadeite crystals are generated, often on top of the red layer, which is caused by limonite dissemination. In the market, the value of red fei is higher than that of yellow jade, and the value of yellow fei is higher than that of brown and yellow jade, and the price of brown and yellow fei is second. However, there are also cases where people's love and unique jewelry make their prices different from the conventional.

(9) Bean jadeite: referred to as bean seed, is a very common variety in the jadeite family. Its name is very vivid: the crystals of the bean species are large, mostly short columnar, like grains of beans arranged inside the jadeite, and the interface of these crystals can be clearly seen by the naked eye. Due to the rough grains, the appearance of jade pieces is inevitably rough, and its luster and transparency are often poor, and the jadeite business community calls it "dry". Bean seeds belong to the middle and low-grade varieties in jadeite, and the price is not high. Beans can be subdivided into coarse beans (grains greater than 3mm), fine beans (grains less than 3mm), jelly beans and ice beans.

(10) Hibiscus jadeite: referred to as hibiscus species, this variety of jadeite is generally light green, does not contain yellow tones, green is relatively clear, pure, sometimes its base is slightly pink. Its texture is finer than that of the bean seed, and the granular structure of the jadeite can be observed under 10x magnification, but the boundary of the jadeite crystal particles is very blurred, and its surface has a vitreous luster, and the transparency is between the old pit species and the fine bean species, which is translucent; Although its color is not strong, but very elegant, although not transparent enough, but also not dry, very durable, belongs to the mid-grade or slightly higher grade jadeite, the price is suitable in the market, loved by working-class consumers, it can be called a good and inexpensive variety.

(11) Horsetooth jadeite: Although its texture is fine, it is opaque, and the luster on the surface is like porcelain. Horsetooth jadeite is mostly green, and the base is bluish and white when carefully observed, and there are often very thin white stripes in the green, and sometimes clumps of white cotton can be seen. The value of horse tooth is not high in today's market, and it is a mid-range product. Most of the jade pieces in the market are plate fingers, cigarette holders and snuff bottles.

(12) Lotus root powder jadeite: its texture is delicate like lotus root powder, and the color is light pink purple red (light spring color), which is a good handicraft raw material. The structure of lotus root powder species is somewhat similar to that of hibiscus species, and jadeite grains can be seen under 10x magnification, but they are finer than those of hibiscus species, and the grain interface is very blurred. Its characteristics are: the whole body of the jade piece is as fine as lotus root porridge, and the light pink purple red often symbiotes with the cui to form a coordinated combination. Many large pieces of jadeite are often carved from lotus root powder.

(13) Wide film: It is characterized by dark or black green under natural light, coarser texture, and drier water head. This variety of jadeite is high green under transmitted light and dark green under reflected light. When it is thinly sliced, it is a gorgeous green. It was once prevalent in the south of our country, especially in the area of Guangzhou# City, hence the name. Now to be precise, "wide piece" is a method of processing jadeite flakes, its purpose is to process poor transparency, dark green jadeite jade, skillfully apply the relationship between thickness and color, and transparency, when the jade is cut into a thin slice of about l millimeters, the dark color in the jadeite color is obviously weakened or even disappeared, and the green becomes prominent and intense, and the transparency has also been greatly improved. After being edged with precious metals such as platinum and white K gold, the wide film of good is noble but not tacky, and it is expensive in the market. At present, wide films are often used to make tags, chest pendants and other accessories, which are favored by the white-collar class. "Guang Pian" is often cut into dry green (sodium chromium pyroxene), Tie Longsheng and other jade materials.

(14) Jadeite: This is a kind of jadeite with good texture and color, which is a medium-grade jade in the market. The jadeite of the emerald species has good toughness, and the green color is filamentous and tendon-like in parallel arrangement. There is a view that the jadeite with green veins and filamentous distribution on the shallow bottom (middle) is collectively referred to as the emerald species, which the author thinks is inappropriate. The filamentous green color is not necessarily the emerald silk species, and the emerald silk jadeite should have two characteristics at the same time: first, the green is bright, the color shape is strip-like, the filamentous arrangement is arranged into a smooth silk, and the filamentous is in the shallow bottom; Second, its orientation structure is very developed, that is, the green color of the silk strip is clearly distributed in a certain direction. The jadeite crystals are arranged in a fine fibrous elongated direction, indicating that they are subjected to strong stress during the growth process, so the toughness of the jade pieces is very high.

The jadeite of the jade species has good transparency, bright green, thick bands, and a large proportion of the strip area in the overall area. On the contrary, the quality of jade pieces with light green and sparse strips is lower, and the price is much cheaper.

In the past books, all jadeite with a color (green or yellow) in the form of filaments, ribs arranged in parallel, and with a directional structure are all called "golden silk species", the author believes that the "golden wire" and "cuisi" will be more clear, more conducive to the identification, distinction and appreciation of varieties; If a piece of jadeite has both green and yellow filaments or tendons, it can be called "golden jadeite" - jadeite with gold and emerald silk.

(15) Golden silk species: jadeite containing yellow and orange-yellow color in the shallow bottom, with a strip-like filamentous parallel arrangement and obvious directional structure development, except that the color is different from that of the Cuisi species, other characteristics are the same as that of the Cuisi species. But usually the price of goldenrod jadeite is lower than that of jadeite.