White-glazed Stem Cup

This piece of stem cup is in pure white with fine glaze, and can be regarded as the true white porcelain. White porcelain succeeded in the Sui dynasty (581-618), although its emergence can be traced back to the Northern dynasty (386-534). Compared to those of the Northern dynasty, the white porcelain technique during the Sui times shows important progress: the quality of glaze improved, and the early flaws such as yellow or green color within white porcelain disappeared.