Yes According to the inquiry of Chow Tai Sang Jewelry official website, necklaces sold in offline stores are all chain-shaped jewelry made of gold, silver and jewelry. After the customer buys the necklace, the staff will issue a purchase invoice according to the price of the necklace, which is also a certificate for later maintenance. Chow Tai Sang Jewelry was founded on 1999. By July, 2023 18, there were 3,787 stores in China, ranking first in the national jewelry chain.