The diamond is one of the most expensive stones, therefore forgets it quite often. Imitation is so skillful that not every jeweler will immediately see the differences. But still they exist, and you should definitely know them if you are the owner of value or plan to acquire it.
1
Make a purchase only in a secure store, which has the relevant certificates and positive reviews. Never carry out a deal with individuals, even familiar. On the factory tag, it must be treated: "Brilliant". Also, the manufacturer necessarily indicates the weight of the carats, the number of stones in the product, the shape of the cut and the number of faces, the color code and the digital defectiveness of the diamond.
2
The diamond is easy to check with the help of light. It does not miss the straight rays, and reflects them in the faces, as in the mirror. If you look through the stone, you will see only the point of light in the center of the stone. For the same reason, through the jewel lying on the newspaper, it is impossible to read the text. Also through the diamond in the frame is not visible to its cut.
3
"The best friends girls do not fade. Raise on a stone and evaluate the result: the diamond does not respond, and the fianit will cover the sprocket for a few seconds.
4
The thermal conductivity of the diamond can be checked otherwise. If the genuine stone take in hand, for some time it will remain cool. The simulant immediately acquires the body temperature.
5
Lower the test mineral into the water and look at it through glass glass. The perfect diamond will be almost invisible. And if the stone has a genuine top and artificial base, you will see the place of docking on the fake.
6
Gem without a rim place in refractive fluid. A really valuable stone drops to the bottom, since it has a high density. Fianit will swim on the surface.
7
This diamond sparkles very brightly, and an exceptionally gray tint. Multicolored radiance speaks of low quality or imitation.
8
Under the ultraviolet lamp, most diamonds are light blue. Other colors (gray, yellow, green) - a sign of Moissanite.
9
Cover the face of a diamond with fat. The shape of the applied stroke should remain unchanged. In the case of fianit, the bold trail will campack on separate drops. In addition, lubricated with oil diamond sticks to the glass.
10
Inspect the stone with bright lighting and under a strong magnifying glass. The increase should be at least 10 times, and better - 30 times. The original face is not boulen in the reflected light. Through the fianit of the face looks blurry, as on fuzzy photography.
The methods described do not guarantee 100% of the result, they only close to the truth. It cannot give an accurate conclusion and most electronic testers diamond. Only laboratory expertise is capable of establishing the origin of the stone.
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