The first day. Changle Baoyu Town is a large-scale international jewelry mall integrating jewelry design, gemstone culture display and tourism shopping. It opened on the first day of the Spring Festival. Business hours are from 9: 00 am to 9: 00 pm 16: 30 pm. Changle Gemstone Town was established in 1993. It is the largest and most complete wholesale market for precious stones, gold and silver ornaments and handicrafts approved by the State Administration for Industry and Commerce in China, and the only professional market with national title in Shandong Province.