Worth some money. Ruyao is one of the five famous kilns, Ru Ci is more precious, and the treasures of old Ru Ci are priceless. Dongdao Ruyao tea set is the first of the five famous kilns, named after it was produced in Ruzhou. Dongdao Ruyao tea set is known as "Ruyao is the best" in the history of China ceramics. The glaze colors of Dong Dao Ru Yao tea set are azure glaze and moonlight glaze. Dongdao Ruyao tea set is not only simple and elegant in shape, but also unique in color with precious agate as glaze.