Identification of true and false coup Diamond

Diamonds For most people, relying on the naked eye is difficult to distinguish between true and false diamond, Here are two easy and quick way to distinguish between true and false diamond:
1. Touch. Gently with your fingers touch the surface of diamond crystal, there will be a sticky feeling, this viscosity is characteristic of genuine diamonds, fake diamond is not generated. Because diamond has a affinity for oil, and the skin on the fingers of people will secrete small amounts of hand cream, the skin oil and diamond crystal surface contact, will have sticky feeling.
2 pencil. This method invented by the former Soviet Union, an expert in the identification prior to wetting with water first diamond, and then use a pencil lightly in the real diamond crystal surface characterization, pencil across the place without leaving traces; but if it is glass, crystal rhinestones and other materials, the surface will leave marks.

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