Auction houses employ a meticulous process to evaluate and appraise rare porcelain sculptures, combining historical research, artistic merit, and market demand. Experts first examine the piece's provenance, tracing its origins to renowned kilns or historical periods, which significantly impacts value. The craftsmanship, including glaze quality, intricate detailing, and technical mastery, is scrutinized under magnification to authenticate age and artistry.

Condition plays a pivotal role; even minor cracks or restorations can drastically reduce worth. Auction specialists compare the piece against recent sales of similar items, leveraging databases to gauge current market trends. Rarity is another critical factor—limited-edition works or those from defunct kilns often command premium prices.

Finally, auction houses consider collector demand, factoring in cultural significance and aesthetic appeal. By synthesizing these elements, they arrive at a fair estimate, ensuring both sellers and buyers navigate the art market with confidence.