Easy to teach you two of true and false identification of di
1. Hand touch. Gently with your fingers touch the diamond crystal surface, there will be a kind of sticky feeling, this sticky is really unique to drill, drill will not generate false. Because there is a diamond on the oil affinity, and people's skin secrete fingers trace the hand of some of the oil, skin oil and diamonds, this crystal face contact can create sticky feeling.
2. With a pencil. This method invented by the former Soviet Union, an expert in the identification prior to first diamond water wet, and then use a pencil lightly in the true characterization of the diamond crystal face, a pencil across the places that leave no trace; but if it is glass, crystal and other materials used as false drilling, surface will leave marks.
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