It is necessary to have a deep understanding of jewelry in order to buy or sell. This advice might make it hard to know where to start.
Know which kind of stone you make a jewelry purchase. The three types are imitation, imitation and synthetic. Natural and synthetic are both real, but imitation gems are probably just colored glass or plastic. Natural stones are dug up out of the ground and synthetic gems are created in a lab.
Pay attention to the types, sizes, and any other typical jewelry that they wear. These types of observations will provide a reasonable starting point to purchase an item they’ll cherish.