Shichikan Celadon is a type of celadon ware produced primarily at the Longquan kilns in China from the Ming dynasty onward. It is characterized by a translucent glaze with a pale bluish-green (jade-like) luster, often featuring a fine network of crackles (crazing). In Japan, this distinctive style is known as Shichikan-de.
Many pieces exhibit sculptural techniques such as incised and relief carving, as well as molded forms created using stamps or clay molds. Molded incense containers (kōgō), in particular, are almost exclusively found in this style of celadon.
The origin of the name "Shichikan" is uncertain: one theory suggests it comes from a Ming official named Shichikan who introduced the ware to Japan, while another theory holds that it derives from an official title during the Ming dynasty.