Usually not. You can watch. In this case, it is suggested to go to a bigger gold shop and weigh it first, and then weigh it after he picks it up.

Quick connection. The proportion of gold is 19. 3g/cm3, fineness has a great relationship with specific gravity, which is close to 19. 3. The higher the pure gold content.

Weigh it by hand to see if it is commensurate with its size. Large and light shapes may be adulterated.

But generally, if you hold it in your hand, you can feel that it is real gold jewelry when you feel a little heavier, indicating that the gold body is small and heavy. Beware of silly light ornaments and carefully distinguish whether they are fakes or semi-fakes.