Old method: use a pencil to identify genuine and fake diamon

For the case in the absence of instruments to identify diamonds under the true and false, distinction between the real diamonds and synthetic diamonds, crystal, glass or zircon, etc., and accumulated a lot of people invented a very simple and practical way.
Hand model approach to identify genuine and fake diamond is the more experienced people often use the method, the diamond with your fingers lightly touch the crystal surface, there will be a sticky feeling, this adhesive is the unique real diamond of. Because diamond has a affinity for fat, and skin on the fingers of people have very small amounts of some of the secretion of hand oils, skin oils and rocks of this crystal face contact, the diamond will be due to the affinity of the oil produced sticky feeling. And those other natural materials would not have this special feeling. However, if the identification of those inexperienced or difficult to distinguish between genuine diamonds, so this method should be used with caution. Diamond pencil to identify true and false, is a relatively simple way. This is a Soviet experts found previously, this simple approach was welcomed by the general diamond lovers, of course, only use a pencil to identify, certainly not infallible. diamond diamond.yifei8.net
In the identification of the time, water to wet the diamond first, then use a pencil lightly carved, genuine diamond crystal at the surface, a pencil across the place is no trace left, but if not diamonds, but the glass , crystal and other materials, it will leave marks on the surface.
Under normal circumstances, carved with a pencil to identify the genuineness of the diamond, the accuracy of this method is high. However, in identifying when to pay attention to some good old inlaid diamond jewelry, is not water infiltration, because if it is to do materials such as copper or silver jewelry inlaid seat, easily oxidized. In addition, under normal circumstances the diamond crystal surface is also the need to avoid oil, dust and material contact.

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