Auction houses employ a meticulous process to estimate the value of rare porcelain sculptures, blending historical research, market analysis, and expert appraisal. Key factors include the piece's provenance, condition, rarity, and artistic significance. Provenance traces ownership history, enhancing value if linked to notable collections or periods. Condition is critical—flaws like cracks or repairs can significantly reduce worth. Rarity drives demand; limited-edition or unique pieces command higher prices. Artistic merit, such as craftsmanship and aesthetic appeal, also influences valuation.

Market trends play a pivotal role. Auction houses analyze recent sales of comparable items to gauge current demand. Collaborating with specialists in ceramics ensures accurate attribution and authenticity checks. Additionally, cultural and historical context can elevate a sculpture's desirability, especially if tied to renowned dynasties or artisans.

Ultimately, auction houses combine these elements to set a pre-sale estimate, guiding buyers and sellers while reflecting the dynamic interplay of art, history, and commerce in the valuation process.