Porcelain sculptures are prized for their delicate beauty and craftsmanship, but certain flaws can significantly diminish their value. The most common imperfections include cracks, which may appear as hairline fractures or deeper breaks, often caused by stress or impact. Chips, especially along edges or intricate details, are another major flaw that collectors avoid.

Glaze defects, such as uneven application, bubbling, or discoloration, can also reduce a piece's worth. Firing flaws like warping or pitting indicate poor manufacturing quality. Restoration work, if poorly executed, may leave visible seams or mismatched colors, further decreasing value.

Other issues include crazing (a network of fine surface cracks), staining from improper storage, and missing parts on figurines. Provenance problems, like unclear origins or reproductions passed as originals, also impact value. Serious collectors prioritize pieces with minimal damage and well-documented histories.

Understanding these imperfections helps buyers make informed decisions and properly assess porcelain sculptures' true worth in the art market. Proper handling and storage can prevent many of these flaws from developing over time.