As long as it is a gold necklace of an old temple, it is very simple to identify the authenticity: there will be steel seals on the necklace, such as: Shanghai Old Temple, Shanghai LM, Old Temple, Old Town God Temple and so on. The composition is also stamped. Such as: thousands of gold, gold, 18k and so on. The way to identify the authenticity of the gold in the old temple is as follows: all the gold necklaces in the old temple have their own "steel seal", and the gold necklaces are on your buckle. There should be the words "thousands of gold" and "Tiger Prison Temple", usually on the necklace buckle.