Diamond is very precious jewelry and can be passed from generation to generation, this is not only because its high price but also because it is unqiue. But there are also many fake diamond on the market, you can know how to spot fake diamond from this article.
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How to spot a fake diamond
2010-09-24 09:31:15
With diamond jewelry get more popular on market, many high quality imitation diamonds appeared, sometimes it’s very hard to detect a fake one. These years, many illegal jewelry dealers sell fake diamonds, and charge consumers a high price, so how to spot a fake diamond?
1.Touch with your fingers
Touch the diamond crystal surface lightly with fingers, maybe you can feel a kind of sticky, which only unique to the diamond, others stones are not going to happen. Because diamond has affinity with oil, while people’s fingers skin will secrete small amount of hand cream. So when this skin oil contact with crystal surface create sticky feeling.
2.Water-drop
Drop a water-drop on the diamond, if its globular shape can keep for a long time that stone can be true. However, the water-drop on fake diamond will spread relatively in a shorter time.
3.Sensory test
Touch the diamond with your tongue at room temperature, then you will find the true diamond is cooler than the imitation one.
4.Oil test
Draw a line on the diamond use an oil-based ink pen or a ball-pen. On surface of the real diamond there will appear a continuous line, while the fake one keeps a intermittent point line, due to it doesn’t has affinity with oil.
5.Penetrating observation
Diamond has a high refractive index, and the higher refractive index diamond is more powerful at light reflectivity, however has lower degree at perspectives. You can draw a line on a piece of paper, and put two diamond faces down on the line. If you can see the line through one stone, that must be the fake one.
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