1, the shape should not be too complicated, each facade should have a clear and unified style, and the facade with demands should follow the overall style, but it should be strengthened and highlighted as much as possible; 2. Color setting or matching is a test. The biggest difference between jewelry and other commodities lies in its volume, so it is recommended to use pure monochrome, preferably dark and mixed colors that tend to be hidden and restrained, but there are also successful cases of using light or solid colors (even the pure white of Beijing Palace); 3. Material selection is the key, which is the most important from the aspects of design consideration, processing technology and cost budget. Improper handling may even make the whole decoration a complete failure; 4. It is recommended not to use lighting effects as much as possible, for the same reason as the second one.