East China International Jewelry City was founded in 2006, with a total area of 65.438+0.2 million square meters and a total investment of more than 3 billion yuan. It is a world-class pearl jewelry production and processing center, distribution and logistics center, brand display and trading center, capital flow and business information release center, jewelry cultural exchange and business tourism shopping center.
The market has spread to more than 60 countries and regions such as the United States, Japan, Russia and Southeast Asia. The annual turnover of freshwater pearls accounts for 80% of the whole country and more than 75% of the world's freshwater pearls. It has established the status of the global freshwater pearl trading center and is the largest online and offline supply chain base of pearls in the world.
Selection method of pearls
1, look at the luster: when choosing pearls, look at the luster of pearls. When pearls are placed on white soft cloth, they can see the luster similar to seven-color rainbow when facing the light, among which pearls with rich layers and strong reflective luster are of better quality.
2, look at the shape: when choosing pearls, we should also pay attention to the shape of pearls. Among natural pearls, there are few round pearls, mostly irregular round or pear-shaped. The rounder the pearls selected, the higher their value and the more valuable they are for collection.
3, look at the size: natural pearls have fewer large particles and relatively high value. Pay attention to the size of pearls when choosing them. Generally, pearls below 6 mm are not among the jewel-grade pearls, pearls of 7 ~ 9 mm are more popular, and pearls above 10 mm are more difficult to obtain.
4, look at the smoothness: the surface of natural pearls will not be too smooth, and you can also observe whether the surface is flawed when selecting. The fewer flaws, the higher the smoothness of pearls, and the more precious their value. Generally, no defects can be seen at a distance of 0.5 meters, and pearls are considered as standard products.