The unification of the Northern Song Dynasty brought cultural and economic prosperity, especially Song Huizong and Evonne's addiction to jade, which further promoted the rise of epigraphy and the prosperity of urban economy, and directly or indirectly promoted the unprecedented development of jade articles in Song, Liao and Jin Dynasties. Although Song Huizong was not a good emperor, he was an excellent artist who loved epigraphy, which had a great influence on the development of arts and crafts.

Especially in Song Huizong, a white jade crane fingered citron pendant, the pinnacle of jade carving skills in the north and south, is a peerless treasure, loved by Huizong and extremely precious. This piece was made from a small piece of rare suet jade seed material in the depths of Hotan Glacier during the reign of Hui Zong, and it took three years for the masters of North and South. On the one hand, the white crane was carved by the northern faction, and on the other hand, the bergamot was carved by the southern faction. It is a wonderful work. It's a pity that this piece has been lost today, so it can't be shown on the picture (it is said that the income of the Beijing inverted bucket man is a family heirloom, and it is said that it is now in the possession of Mr. Zheng, a young collector in Luoyang).