Black beauty tourmaline is the least valuable color. The texture of black rose tourmaline is not very transparent, and the color is too dark, which makes people have no desire to buy. Moreover, black rose tourmaline is usually used as industrial raw materials, not as jewelry. So both are very cheap.

Tourmaline is the handicraft name of Tourmaline. Tourmaline is a kind of jewelry of Tourmaline family and a borosilicate crystal.