Before Jingdezhen artisans of the Yuan dynasty combined Persian cobalt with Chinese kaolin, blue-and-white porcelain did not exist. This fourteenth-century technical experiment created the most widely collected ceramic tradition in the world.
Origins: Pigment on the Silk Road
The blue of Yuan blue-and-white comes from cobalt oxide, and fourteenth-century China did not produce abundant high-quality cobalt locally. Its key raw material, Sumali (Samarra) cobalt, was brought by Persian merchants along the Silk Road; research generally places its source in the Kashan region of present-day Iran.
The Mongol Empire opened trade networks across Eurasia, allowing this expensive imported pigment to reach Jingdezhen in quantity. At the same time, strong demand in Central Asian and West Asian markets for large blue-and-white porcelains became the commercial force behind the technical breakthrough.
Jingdezhen's Technical Breakthrough
The emergence of Yuan blue-and-white was not accidental. It resulted from the simultaneous maturation of three techniques:
1. Introduction of Macang Clay
In the Yuan dynasty, Jingdezhen began adding Macang kaolin to porcelain clay, allowing the body to withstand higher firing temperatures and providing the material basis for making large vessels.
2. Cobalt-Painting Technique
Ground cobalt was painted directly onto the unfired body, covered with glaze, and fired once at high temperature. This was entirely different from the decorative logic of earlier Chinese ceramics and required painters to complete the design without seeing the final color effect.
3. Fusion of Decorative Vocabulary
Yuan blue-and-white decoration combined traditional Chinese subjects, such as dragons and phoenixes, pine, bamboo, plum, and narrative figure scenes, with Islamic decorative modes, including scrolling flowers and geometric borders. The result was a distinctive visual language that met the tastes of both Eastern and Western markets.
The David Vases: A Pair That Changed Scholarship
Before 1929, Western scholars did not even firmly recognize the existence of Yuan blue-and-white. That understanding was transformed by a pair of vases.
Sir Percival David acquired from a Beijing dealer a pair of blue-and-white temple vases with elephant-head handles and dragons among clouds. The inscriptions on the necks record that a devotee named Zhang Wenjin of Jingtang community in Dejiaoli, Shuncheng township, Yushan county, Xinzhou circuit, made the offering, and that it was dated to an auspicious day in the fourth month of the eleventh year of the Zhizheng reign.
The eleventh year of Zhizheng corresponds to 1351. This makes the pair the only absolutely dated standard examples of Yuan blue-and-white known to date, and they established the chronological framework for the entire category.
Market Value
Surviving Yuan blue-and-white is extremely rare. Fewer than 400 standard examples are currently accepted by scholars, and fine large narrative jars and chargers are rarer still.
In 2005, a Yuan blue-and-white "Guiguzi Descending the Mountain" jar sold at Christie's London for HK$230 million, setting a world auction record for Chinese art at the time. Today, top-tier Yuan blue-and-white remains the absolute summit of the Chinese ceramics market, and the appearance of any genuine example is a major event for the field.