Qing Dynasty blue-and-white porcelain jar, beautifully shaped with a pure glaze and exquisite painting. Blue-and-white porcelain is an underglaze porcelain where patterns are painted directly onto the porcelain body using cobalt pigment, then a transparent glaze is applied, and the piece is fired once at high temperature, resulting in a blue and white interplay of colors. Its bright and elegant tones, smooth and lustrous glaze, and timeless beauty make it a truly exceptional piece.