jade which should enter into this practice

 jade which should enter into this practice, but with compared to diamonds and other precious stones, jade's situation is more complex, the composition of the index factors more. First, there are a variety of colors such as jade, Cubic Zirconia Tungsten Ring colorless, green, yellow, red, ... ... have a variety of colors, and these color changes are very large, very complex. "Wang Manjun bluntly: "In the emerald grading standards, and jewelry from the management center is mainly organized as a platform, to some extent the final outcome of the game all standards and any standards is doomed to heavy resistance, and If you only see the difficulties, the standard formulation is not never come out. "

Jade classification precedent-owned enterprises

On the one hand, Jade faces difficult classification, Engraved Tungsten Rings on the other hand, continues to explore the classification of people have gradually groping in the feasibility of the program.

September 2005, the leading enterprise in Shenzhen Jade Jade Jade introduced in the emerald business classification based on extreme standards. In this standard, the emerald has been divided into congenital and acquired Laser Engraved Tungsten Rings classification of two aspects:

The so-called innate, that is material, including color and transparency; called the day after tomorrow, that is, carving, precision-degree evaluation is divided into U.S. Society degrees. Corporate standards take into account the actual consumption of jade collection of the basic factors. The production of an ordinary artisan sculptor works with through careful scoring, combined with the material, can be a visible grade assessment.

It is said that this standard, the theory of an extreme that is priceless, reaching 4,000 to 5,000 points has been quite the quality of jade, Engraved Tungsten Carbide Rings 1,000 points may be worn to meet the needs of the ... ...