1, the specific color is the natural color of natural jewelry, and synthetic gems are often over-decorated and unnatural.
2. Purity refers to the transparency and cleanliness of gemstones. Generally, synthetic jewelry has fewer defects and cleaner interior.
3. Look at the process of jewelry processing. After polishing, natural jewelry has smooth surface, strong refractive index and crisp angular lines. However, synthetic gems often become rough and dull after polishing.
4. The card weight method is to identify jewels with the same volume by weighing. If zircon and diamond with the same volume are weighed at the same time, the heaviest one is diamond.
5. Lighting identification is to check the jewelry under the desk lamp, put down the lampshade so that the light does not directly hit the eyes, and then put the jewelry on the edge of the lampshade, half in the dark under the light, and half in the light to illuminate its internal defects through the light.