you need
  • magnifying glass, microscope, turquoise or garnet fluorescent lamp, a bright light source
Guide
1
Rubin from forgery differ primarily in size.Large, densely colored ruby ​​ very rare in nature.If the stone is very large, its origin should be alerted.
2
Most stones bright red color in jewelry - synthetic corundum.Unlike natural ruby ​​ s - they are perfect shape.Natural stone usually has internal defects.Grown by the method of Verneuil corundum has a curved color zoning, which is not in the natural ruby ​​ e. Sometimes they even found the gas bubbles and red ultraviolet fluorescence.Natural ruby ​​ may also have blisters, but they tend to be the same color as the stone.
3
If you examine the stone under a magnifying glass and a microscope, the ruby ​​synthe
tic e grown flux method can detect the inclusion of flux.You can also see traces of material growth chamber (crucible) - platinum, gold and copper.
4
Rubin very durable stone.If you scratch the ruby ​​ th stone with a lower strength, such as turquoise or garnet will be visible tsarapiny.U ruby ​​ and no cleavage.Therefore break ruby ​​ very difficult.
5
Features ruby ​​ as seen in strong light.
natural stone color in bright light becomes darker.Well needles visible inclusions, which give the so-called "silk" shine.In
cutting cabochon ruby ​​from natural as such have the effect of inclusion of six-pointed stars.All this can be seen under a microscope.
6
If fake ruby ​​ direct ultraviolet light, it turns orange.
7
crack on the surface of the stone, can be an indicator of origin.
crack in natural stone will not shine and be a zigzag.In fakes, she will direct and siyayuschaya.V any case, if there are doubts about the authenticity of the stone, it is best to turn to the jewelers.Before buying you must carefully examine the documents on the product with a precious stone.