Yes Jewelry is a precious wealth left by nature to mankind. There are more than 3,000 kinds of minerals formed in nature, and only 150 kinds of mineral materials can be used as jewelry, but only more than 20 kinds are common. This shows that it is rare. If there is a scam to scratch the prize of 2000, it is useful to call the police. The police will arrest these people to prevent more people from being deceived.