The specific reasons will also tell you three points, hoping to help:
First, Hetian jade is rare and precious, and it is impossible to sell it without polishing. Because the beauty of Hetian jade and the characteristics of jade can only be revealed after polishing.
Secondly, it is difficult to judge whether the semi-finished jade is moist, and whether the hardness and brightness are sufficient, so buyers naturally cannot tell whether it is Hetian jade or cheaper miscellaneous jade, or even stones with a certain hardness close to the color of jade. ...
Third, the buyer can't personally handle the semi-finished jadeite. I really don't want to spend hundreds of dollars polishing jade with the original value of 100. ...
In short: Hetian jade must not be polished, they just make it impossible for buyers to see the quality at a glance, and then use ordinary or defective jade to shoddy.
In addition, the one upstairs is wrong: the use of the roller is not polishing, but rounding; The purpose is to forge the shape of Hetian jade seed material with ordinary jade. The polishing method of Hetian jade is not so simple _