The key to jade color evaluation

This is the four-character 描述 of the jade artist's description of the evaluation of the color of the jade.

The color of jade is the most important indicator of jade quality, which can account for 30% to 70% of the estimate. From dark green to white, the color changes in between. In order to evaluate these colors, our jade artists use a lot of symbols.

The words of color are used to describe the names of dozens of different names. Different regions are called different methods. Taking the Yangtze River Delta as an example, the description of jade green is rich in ice green, yang green, yellow poplar green, dark green, green green, golden silk green, blue green, fake plum green, thick and green, light and Green, oil green, green gray green, oil green, fresh water green, thick sand green, water sand green, sand green, brushed green, porcelain green, stone sand green, pink green, pink green, green apple green. Some names not only describe the shade of green, but also indicate the distribution of colors, such as gold green, plum green, brushed green, and so on. However, these retained titles do not have strict scientific boundaries. Different regions in the same region may have different names for the same kind of green. But regardless of the name, the most important thing to describe the value of jade color is the four words "strong, positive, yang, and".

Concentration refers to the color of jade to be green and green, and the more green and jade in jade, the higher the value, but if it is too dark, it will sink, so it also requires color.

The emerald green is pure, not blue, not yellow, less motley, that is, the so-called "evil."

The green batch of green should be bright, and it will be bright green under normal light conditions, not dark and not low.

And the distribution of green in a piece of jade should be uniform, the color tone is harmonious and not messy. Through these four words, we can specifically assess the color of a piece of jade.

But it must also be noted that it is best to look at jade in the morning, when there is sunshine; see jade under cloudy or night light, the color of jade of some color species will change greatly, thus affecting the correct assessment; Observe that the light source should be placed on the front of the observer and not on the transmitted light. Only in this way can we really assess the quality of jade.

However, the value of a piece of jade is related to the amount of color, and sometimes depends on the use of green, especially some jade carvings. If the green is used well, it will be able to make a finishing touch, so that the jade is worth a hundred times, otherwise it will reduce its value. For example, the “Bai Cai Biao” boutique of Beijing Jade Factory will be carved into a lively aphid on the bottom of the white jade, while the lower-value white land is carved into cabbage, which is green and white, and the national and the national The work is full of vitality, which greatly increases the green value of the group. Of course, this also has the problem of enlightenment aesthetics. Generally, the jade artists in the south, such as Guangdong, like to use the whole green carving method, that is, they like green.

The color part is carved separately, while the artists in the middle and lower reaches of the Yangtze River make good use of the harmonious correspondence between green and white. In addition, the jade carving wound must also pay attention to the quality and style of its carving work.