How to recognize a diamond

- Categories : Diamonds

The best known method is certainly the "proof of the glass": if the diamond is mounted on a ring it is sufficient to rub on a glass and we will get a fine scratch on the glass and no damage to the diamond.
Let's add a method less known, but certainly original.

It is necessary to highlight that this assessment is well suited not only for diamonds embedded and cut into brilliant.
This cut is designed to achieve precisely the maximum "brilliance", causing the light rays that strike the gem being dumped from the top of the gem itself. Light rays break down in rainbow colors and thus create the spell
The result will then be reached provided that the gemstone has been cut according to "ideal proportions"


Must precede the explanation of how "recognize the diamond", by a few nods that explaining the behavior of light (refraction and reflection) in the brilliant cut diamond.
We observe, therefore, the behavior of a ray of light coming from the top of the stone (called "table").

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               Deep Cut                                    Low Cut                                 Ideal Cut

As you can see, if the diamond has been cut respecting the "ideal measures", all the light rays that strike the upper part (table), penetrate the gem and them escape from the same part.

And here is the method that allows us to determine whether a brilliant cut diamond is a real diamond and its proporsioni cutting are ideal.i. 

It is sufficient to draw a point on any of a white sheet and position the diamond on the point itself, with the cusp facing upward.

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Since all of the light that penetrates from the part of the "table" comes out exclusively by the table itself, also the image of the point will penetrate the gem to exit from the same side, upwards.
Consequently, observing the brilliant from his back, the point will be completely invisible..  
The spire of the gem we appear completely non-transparent, as if it were composed of polished steel.

If the point were to be visible, such as observing it through a magnifying glass, we would be facing an artifact or a stone which is not a diamond, or in front of a brilliant cut diamond without compliance with the "porporsioni ideal".

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