Identifying counterfeit porcelain sculptures in auctions requires a combination of expert knowledge, technical analysis, and careful observation. Here are the best methods to ensure authenticity:

1. Examine the Markings: Genuine porcelain often bears maker’s marks, reign marks, or workshop stamps. Compare these with verified references to spot inconsistencies in font, placement, or glaze quality.

2. Analyze the Glaze and Pigments: Authentic antique porcelain exhibits subtle aging, such as crazing (fine cracks) or patina. Modern fakes may use synthetic pigments or overly uniform glazes.

3. Check Weight and Density: Counterfeit pieces may feel lighter or heavier due to inferior materials. Familiarity with the typical weight of genuine pieces helps detect anomalies.

4. Consult Experts: Professional appraisers or thermoluminescence testing can confirm age and composition, especially for high-value items.

5. Study Provenance: Verify auction records, previous ownership, and restoration history. Lack of documentation or suspicious gaps may indicate forgery.

By combining these techniques, collectors can minimize risks and confidently bid on authentic porcelain sculptures. Always prioritize due diligence when investing in antiques.