Buy sapphire

Buy Sapphire Notes 1. The color of Sapphire is an indicator of its value. A very dark blue sapphire may only be sold for one hundred Hong Kong dollars, but a good sapphire blue sapphire is sold for tens of thousands of Hong Kong dollars per card. In the United States and Europe, people prefer the darker Sapphire. In Hong Kong, consumers like the medium depth of blue, which is a higher price. Put Sapphire in one arm and watch carefully whether it is blue or black. If it is blue, then your choice is not as good as it is.

2. Look at precious stones under natural sunlight and artificial light sources. Gemstones look lighter under strong light, but they tend to be darker under normal daylight.

3, to see if the color is uniform, cracks will affect the appearance and durability of the gem. If the feathering stretches to the surface of the stone, a sudden impact (for example on a sparrow) will cause the gemstone to break.

4. Don't forget to observe the cutting and proportion of the gem.

5. Like Redbom, be careful about imitations and a few real ones.

Sapphire and similar minerals can be correctly distinguished by their respective mineral crystal characteristics. Gem grade Blue Cone is only produced in the United States and its production is relatively small. Although the color is similar to sapphire, its hardness is small, and the Mohs hardness is only 6-6.5. Therefore, hardness can be distinguished from sapphire alone; natural sapphire has double The refracted spinel is a single refraction. If the blue gems show a red flash, it can be concluded that the blue gemstone is a spinel or a zeolite; the sapphire's high hardness, high density, and high refractive index can be Tourmaline, cordierite, veil stone to distinguish.