Do you have a certificate? If there is, it is true. Last time, my friend won the second prize, with a 30% discount. It seems that a gold inlaid with hetian jade was chosen at that time, and it was suspected to be fake at that time. Later, I took it to the appraisal center and the appraisal result was true. It seems that I spent more than 500 appraisal fees. However, I have never won once. My family bought it at a 5.8 discount.