Jade generally refers to the signature products of xiuyan jade and chinese national geography in Xiuyan Manchu Autonomous County, Anshan City, Liaoning Province. Xiuyan jade is one of the four famous jade in the history of China, and ranks third with Hetian jade in Xinjiang, lantian jade in Shaanxi and dushan jade in Henan, so it is named after Xiuyan in Liaoning.

Identification certificate to identify Tian Yu.

Look at the inspection agency. The state has very strict qualification certification for the quality appraisal institutions of jewelry and Hetian jade. Only the appraisal certificate issued by the recognized appraisal institution is valid. It is essential to look at the serial number of the appraisal certificate, because sometimes, customers need to recheck it online to see if the appraisal certificate is really from an appraisal institution or forged, which is the role.