1, the higher the purity, the whiter the silver, and the jewelry surface looks even, shiny and polished. If it contains lead, jewelry will appear blue-gray. If it contains copper, the surface of jewelry will be rough and the color will not be moist.

2. The density of silver is slightly higher than that of ordinary metal. Generally speaking, aluminum is light, silver is heavy and copper is not heavy. Therefore, it can be preliminarily judged whether it is silver by weighing. If the jewelry is big and light, you should pay attention.

3, sterling silver jewelry hit the floor, inelastic, loud. The lower the color, the lower the sound, and the sharper and higher the rhyming sound. If it is made of copper, its sound is higher and sharper, and its rhyme is short and short. If it is made of lead and tin, the sound of falling to the ground is dull, short and inelastic.