Yellow jade of pure color is the most precious kind of jade material, and it is extremely rare. From the Song Dynasty to the Qing Dynasty, it was monopolized by the royal family. The literati class during the late Ming Dynasty highly valued yellow jade and white jade, followed by other types such as greenish-white jade, biyu (nephrite), black jade, and red jade. In the Qing Dynasty, due to the homophonic relationship between "yellow" (黄) and "emperor" (皇), and its extreme rarity, it became a favorite of the imperial family, especially during the Qianlong period when the pursuit of yellow jade reached an unprecedented level. From the perspective of the auction market, the highest price for yellow jade artifacts so far was achieved in the 2004 spring auction at Beijing Hanhai, where a Qing Qianlong yellow jade vessel with chi dragon motifs was estimated at 1.5 to 2.5 million yuan, but eventually sold for 4.84 million yuan.