Pay attention to the following points when purchasing sapphire

There are so many gemstones on the market today that you can find true sapphire or rely on your own eye and memory. Learning the identification of sapphire will not be deceived because of the treacherousness of vendors outside. At the same time, if you want to choose the price and quality of the sapphire, you must pay attention to the following points.

The color of Sapphire is an indicator of its value. A very dark sapphire may only sell for one hundred dollar one card, but a good car daisy blue sapphire sells tens of thousands of Hong Kong dollars per card. In the United States and Europe, people prefer darker sapphire. In Hong Kong, consumers love medium-depth blue, and the color of this sapphire is higher. Put the Sapphire on your arm and carefully observe whether it is blue or black. If it's blue, then your choices are not too far away.

Look at gems under natural daylight and artificial light sources. Gemstones appear to be lighter in glare, but they are "blacker" in normal daylight.

See if the color is uniform and the cracks will affect the aesthetics and durability of the stone. If the plume stretches to the surface of the stone, sudden impacts (such as when the sparrows are licking) can cause the gems to rupture. 4 Don't forget to observe the cut and proportion of the gemstone.

Like the Red Treasure, Sapphire is careful about imitations and almost messy reals.

Sapphire and similar minerals can be correctly distinguished by their respective mineral crystal characteristics. The gem-quality blue cone mine has only one place in the United States, and the output is small. Although the color is similar to that of the sapphire, its hardness is small, and the Mohs hardness is only 6-6.5, so the hardness can be distinguished from the sapphire alone; natural blue Treasure has birefringence and spinel is single refraction. If red flash can appear in blue gemstone, it can be concluded that the blue gemstone is spinel or zoisite; Sapphire's high hardness, high density and high The refractive index can be distinguished from tourmaline, cordierite, and zoisite.

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