Color identification method: high-quality silver jewelry looks white, shiny and fine, and the store number is printed on the jewelry; Most of the color difference, poor color and dullness are fake silver ornaments.
Identification of true and false by discoloration and non-discoloration of Burmese spotted wine. Spotted spirits will not change color after wearing for a long time. Under natural light, the surface of pearl has a faint blue-white or green-white luster. Ban Ling, also called variegated stone, is a very precious gem, a unique and rare gem.