Jewelry identification is to identify the species, purity, synthesis, artificial, processing and part of the origin characteristics of all jewelry and jade and organic gemstones. It can accurately identify the authenticity of jewelry by eliminating the fake jewelry and jade processed by counterfeiting, so as to protect the rights and interests of buyers.

A diamond is the hardest of all natural substances. A diamond can carve any other stone, but no other stone can carve a diamond. The most accurate and reliable way to distinguish between diamonds is to use a "thermal conductivity meter", which measures the thermal conductivity data to distinguish between real and fake diamonds, but the "thermal conductivity meter" is more expensive.

Because diamond is noble and luxurious first act the role of article, on the market with cheap gem, artificial gem even glass will replace or fake diamond common, common all sorts of false diamond has the following kinds:

Zircon: very similar to diamond, is the best substitute for diamond. The identification method is that zircon has polarizing property and large birefringence index. When the processed zircon is observed with a 10x magnifying glass, the bottom edges of the zircon can be seen to have obvious double shadow from the top, while diamonds never have double shadow phenomenon.

Glass: glass refractive index is very low, there is no diamond that kind of flashing color light; Especially when it sinks into the water, the glass luster is all gone and immediately reveals its flaws.

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