Achieving a high-shine polish on unglazed porcelain sculptures requires careful techniques to enhance their natural beauty. Here are the most effective methods:

1. Wax Buffing: Apply a thin layer of high-quality carnauba or beeswax, then buff with a soft cloth or rotary tool for a glossy finish.

2. Diamond Paste Polishing: Use progressively finer grits of diamond paste (from 1000 to 14,000 mesh) to refine the surface to a mirror-like shine.

3. Burnishing with Smooth Stones: Gently rub the surface with an agate or jade burnisher to compact the clay particles and create a subtle sheen.

4. Ceramic Sealants: Apply a clear, non-yellowing sealant to protect the sculpture while adding a durable shine.

5. Hand Polishing with Microfiber: For a softer glow, repeatedly polish with a microfiber cloth to smooth microscopic imperfections.

Each method offers unique benefits, so choose based on your desired finish and the sculpture’s fragility. Always test techniques on a small area first.