When you go to buy fake Van Cleef & Arpels jewelry with a diamond style, the most worried about is how to identify the true and false diamonds.
Diamonds are the hardest material in natural matter, and diamonds can characterize any other gemstones, but any other gemstones are carved with diamonds. As long as the hardness is less than 9 degrees, are false diamonds. Diamond also has a lipophilic, such as a pen in the diamond surface draw a line, then into a continuous straight line, while the other gems were intermittent intermittent line. The above methods in the identification of diamonds have a certain reference value.
Can also be observed by 10 times magnifying glass, in the 10 magnifying glass, the majority of diamonds visible flaws, a triangular growth pattern, the diamond surface “red, orange, blue” and other colors of “fire” light. shining. The most accurate and reliable way is to use the “thermal conductivity meter” to measure the thermal data to distinguish between true and false diamonds, but this equipment only professional testing organizations will be expensive and expensive, so we can identify the true and false diamonds can Professional testing organizations to carry out testing.
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As the diamond is noble and luxurious jewelry, the current market to cheap gemstones, artificial gemstones and even glass to replace or call the diamond is not uncommon, common types of fake diamonds are the following:
1, Zircon: very similar to the diamond, is the best substitute for diamonds. However, because of the polarized polarities and very large birefringence, when the prism face is observed with a 10x magnifying glass, the top edge of the prism can be seen from the top of the prism. There is no double diamond phenomenon.
2, Glass: glass refractive index is very low, there is no diamond that flashing color light; especially sink into the water, glass products without glory, immediately exposed feet.
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3, The Soviet Union drill: that is cubic zirconia, the earliest developed by the Soviet Union, hence the name. Soviet drilling is an artificial compound, but in the dispersion, refractive index and other aspects of natural diamonds are very close, but also has a “fire” glittering seductive appearance. But its hardness is low (8.5), can be distinguished from each other with the diamond. And thermal conductivity is much lower than the diamond, you can “thermal conductivity instrument” identification, accurately distinguish it.
4, Crystal: crystal Although natural crystal transparent crystal, after processing like diamonds, but the lack of diamond color light.
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