I don't know anything else. I just bought it at the royal family. That day, I walked to the intersection of Wenhua Road and saw a jade shop downstairs of the Academy of Social Sciences. I went in and took a look. Pretty good, just bought a bunch of garnet. Later, when the thread was dirty, I went to her house to change the rope, and I changed it without saying anything, which was very impressive. Say it for your reference.