Shuibei has a jewelry and jade appraisal center, which is cheap and quick. 10 yuan/appraisal certificate. You can get the results in the morning and afternoon, so some jade articles that you are not sure about are still worth going to the instrument for identification.
Extended data:
Jewelry appraisal can be carried out from the following aspects:
1. Specific color
Color is the primary factor of jewelry aesthetic feeling. The color difference between real jewelry and fake jewelry is obvious. Natural jewelry is natural in color, while synthetic gems are often over-decorated and unnatural. The biggest feature of natural sapphire is uneven color, while synthetic sapphire is uniform color. Artificial jadeite is often dark green, too green and unnatural in color.
Step 2 be clear
Clarity refers to the transparency and cleanliness of gemstones. Use a magnifying glass with a magnification of 10 to observe whether there are cracks, flaws and scratches on jewelry. Generally, synthetic jewelry has fewer defects and cleaner interior. Through the clarity, it is helpful to identify the authenticity of jewelry.
Observe and think
Thinking is the process of jewelry processing. Distinguishing the quality of jewelry cutting and polishing is also helpful to distinguish the authenticity of jewelry. Because natural jewelry has smooth surface, strong refractive index and sharp edges after polishing; But synthetic gems are often rough and round after polishing. Natural products of the same size look more exquisite than man-made products, and the cutting edges are even and symmetrical.
4. Card Weight Method
Card weight method is a method to distinguish the authenticity of jewelry with the same volume by weighing. For example, gemstones polished with artificial zirconia crystals are similar in appearance to diamonds and are the most ideal substitutes for diamonds.
It's difficult to distinguish fake diamonds from real ones when they are put together. For example, put diamonds and zircon with the same volume together and weigh them, with diamonds being heavy and zircon being light. Similarly, for pearls, natural pearls are heavy and artificial pearls are light.