Jade knowledge is extensive and profound. How to distinguish the quality of jade depends on three aspects

1. Look at the color

Jade has extremely rich colors, which is an extremely important factor in evaluating the quality and value of jade. Among the many colors, red, green and purple are the main colors. They are all high-end colors in jade, among which green is the most gorgeous and precious.

In the traditional color classification, people regard the green color of jade as thick, bright, pretty, correct and harmonious. The so-called "thick" refers to the color of jade as dark green without any black, while "light" means that the color of jade is lighter. "Yang" means bright and vivid colors that make the eyes bright, while dark and dull colors are called "Yin". "Pretty" means that the green color of jade should appear crystal clear, beautiful and lovely, otherwise it will be "old". "Positive" means the color should be pure, without any other colors. If it has any other colors, it will appear "evil". "He" means that the green should be uniform and consistent. If the green is distributed in different shades, it is called "flower".

There are four top-quality jade greens: sapphire green, which is a deep, rich green without any yellow, with good transparency, and is elegant and solemn. Because its color resembles emerald, it is also called "emerald". Glass green refers to a bright green color that is as clear and transparent as glass, vivid and bright, with good transparency. Seedling green is slightly yellow in green, has good transparency, and the color is lively and energetic. Because its color is like emerald green seedlings, it is also known as "onion heart green" and "Huangyang Green". Bright green usually refers to a medium shade of green without any yellow or blue. It is pure, highly transparent, beautiful and generous. In some places it is called "emerald green". These four are the most valuable, with emerald green being the best.

The "green" of jadeite fully reflects the charming charm of jadeite and is a very important factor in determining the value of jadeite. What is even more amazing is that these greens come in different shapes, such as ribbon-shaped green; blocks of green of varying sizes and unconnected to each other; silk-like silk-like green; as well as silk-block green, uniform green, skin-closed green, and so on, which makes the green of jade even more unpredictable. In addition, experts often look for the patterns of green changes based on the general direction of green, that is, the direction of green, so as to correctly judge the depth and thickness of green.

2. Look at the water

The color of jade does not exist simply, it is presented through the texture of jade. The first is its transparency. Transparency is the main technical basis for identifying jadeite. The transparency of jade is commonly known as "water head" or "water" in the jewelry industry. Jade with high transparency is often said to have full water head, good water head, or long water head. The higher the transparency, the better. The usual method to test the water content of jadeite is that if light can penetrate into the jade to a depth of 3 mm, it is one point of water. The higher the penetration depth, the more water there is. If jadeite can reach two points of water, it can be considered as top quality.

According to the difference in water head, those jadeites with full water head, transparent or translucent, are called "old type". The old variety has bright color, the color and the base are integrated, the texture is fine and dense, and the hardness, density and refractive index are all high. Those that are opaque, dry, porcelain-like, have little water, dull luster, and are of poor quality are called "new species". Although the new varieties will also have fresh colors, their tones appear dull due to poor water head. There is also a type between the new and old species called the "new old species".

Another factor that affects the value of jadeite is the bottom barrier. The bottom barrier can also be called "ground". It usually refers to the dryness of the jade texture. It can also be said that the base is jade without green, and jade is a colored base. The color of the base does not have a specific shape or characteristics, and is often expressed in different shades of colorless, white, gray, lotus root color, and light green.

The texture of jadeite is determined by the fineness of its structure, water head, and the amount of impurities and cracks. There are dozens of names to describe the ground based on its color, water head and clarity. For example, glass ground, egg white ground, ice ground, purple water ground, gray water ground, no green ground, incense ash ground, lotus root powder ground, lake green ground, oil green ground, blue and white ground, muddy water ground, white flower ground, white sand ground, fine white ground, gray sand ground, lime ground, rough white ground, etc. The more valuable ones include glass ground, which has a delicate structure, sufficient water head, uniform green color, and is translucent; while the egg white ground has white crystal color, just like egg white, sufficient water head, and is translucent, also called glutinous ground; clear water ground refers to a colorless or uniformly colored ground, sufficient water head, and as crystal clear as ice, so it is also called "ice ground".

Three: Look at the subject matter and craftsmanship of the jewelry

Wearing jade has been believed to ward off disasters, avoid misfortunes and protect peace since ancient times. Jade carvings have always been based on people’s ideals and emotions, skillfully combining images of animals or plants, and carving them on jade in concrete or abstract ways. For example, bats represent "happiness"; cranes and sika deer represent "longevity"; bamboo represents "progress step by step"; scorpions and tigers represent "avoiding evil", etc. These clever combinations have formed a special jade carving culture. Without exquisite skills, patience and wisdom, it is impossible to create ideal jewelry with spiritual energy. Common carving techniques include bas-relief, high relief, openwork carving, round carving, and line carving. Finely carved jade jewelry can fully express various emotional needs and is the best gift for relatives and friends.

Jade jewelry, which is full of spiritual energy, needs careful care and maintenance. Although it is very hard, it is afraid of hard bumps and collisions. It is not afraid of water and oil, but it cannot come into contact with strong acids and alkalis. The best way to maintain it is to wear it at all times and use body temperature and moisture to moisturize it. If you are lucky, it may grow some green, which was not very green or had little green originally, and surprise you.

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