Carved lacquer or Qīdiāo (Chinese: 漆雕) is a distinctive Chinese form of decorated lacquerware. While lacquer has been used in China for at least 3,000 years, the technique of carving into very thick coatings of it appears to have been developed in the 12th century CE. It is extremely time-consuming to produce, and has always been a luxury product, essentially restricted to China, though imitated in Japanese lacquer in somewhat different styles. The producing process is called Diāoqī (雕漆, carving lacquer).
Though most surviving examples are from the Ming and Qing dynasties, the main types of subject matter for the carvings were all begun under the Song dynasty, and the development of both these and the technique of carving were essentially over by the early Ming. These types were the abstract guri or Sword-Pommel pattern, figures in a landscape, and birds and plants. To these some designs with religious symbols, animals, auspicious characters (right) and imperial dragons can be added.
The objects made in the technique are a wide range of small types, but are mostly practical vessels or containers such as boxes, plates and trays. Some screens and pieces of Chinese furniture were made. Carved lacquer is only rarely combined with painting in lacquer and other lacquer techniques.
Later Chinese writers dated the introduction of carved lacquer to the Tang dynasty (618–906), and many modern writers have pointed to some late Tang pieces of armour found on the Silk Road by Aurel Stein and now in the British Museum. These are red and black lacquer on camel hide, but the lacquer is very thin, "less than one millimeter in thickness", and the effect very different, with simple abstract shapes on a plain field and almost no impression of relief.
The style of carving into thick lacquer used later is first seen in the Southern Song (1127–1279), following the development of techniques for making very thick lacquer. There is some evidence from literary sources that it had existed in the late Tang. At first the style of decoration used is known as guri (屈輪) from the Japanese word for the ring-pommel of a sword, where the same motifs were used in metal, and is often called the "Sword-Pommel pattern" in English. This style uses a family of repeated two-branched scrolling shapes cut with a rounded profile at the surface, but below that a "V" section through layers of lacquer in different colours (black, red and yellow, and later green), giving a "marbled" effect from the contrasted colours; this technique is called tìxī (剔犀) in Chinese. This style continued to be used up to the Ming dynasty, especially on small boxes and jars with covers, though after the Song only red was often used, and the motifs were often carved with wider flat spaces at the bottom level to be exposed.