Panjiayuan Sub-center of Gem Appraisal Center of Peking University is located in Panjiayuan flea market, which is known as the "ghost market" in Beijing. It is the first branch of the Gem Appraisal Center of Peking University, a national appraisal institution. Relying on the technical strength and academic authority of Peking University, a century-old famous school in China, it has issued an independent third-party appraisal certificate with legal effect for the society. It is the flagship branch of Peking University Gem Appraisal Center, with complete instruments and equipment, authoritative experts and transparent operation.

The biggest feature of this division is the open layout. Face-to-face identification, on-site 30 points out the certificate, the whole process is transparent, and the sample is safer.