1. purple sand flowerpot's sculpture requires high painting skills, patience and accuracy in the production process, while manual carving does not require high painting skills. Therefore, carving in purple sand flowerpot is expensive.
2. purple sand flowerpot's carving and painting are all done by some famous masters transplanting the traditional calligraphy and painting of China to the teapot, so that the teapot has a ceramic handicraft integrating China's calligraphy, painting, literature, history, epigraphy, sculpture and many other elements, while the China element used in manual carving and painting is less, so purple sand flowerpot's carving and painting is expensive.