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Crystal is the symbol of romanticism. Owing to the price of crystal is very expensive, special attention should be made in choosing crystal in order not to confused with common glass.
Content: There will be a product label on the package with percentage of PbO and the original manufacturing place. The crystals we often see in the market are BK7 (PbO free) and JZ2 (PbO>35%) .
Examining: Observing the crystal against the light, and turn it around, the crystal with high quality should be limpid, with no defect. Please notice the large, symmetric side and proper angle. It's evident that the light of crystal is soft and beautiful if put together with the common glass. The crystal with high quality is the same as good as china, a beautiful sound will comes out when you knock at it.
The standard of the price level: It needs well technology if the shade of it is not the rounded one, which leads the higher price. In order to get the better rate of repercussion, all of veining and sculptures are made by hand, side by side, so the price of this crystal is more expensive.