1 thought on “How to identify the authenticity of a diamond ring?”
Doris
1. Specific gravity test method:
there is a specific gravity liquid on the market to measure the specific gravity of gemstones; We can use a specific gravity of 3.32 to test genuine and fake diamonds. The specific gravity of natural diamonds is 3.52. All natural diamonds will sink when placed in specific gravity water. Therefore, any gemstone floating in specific gravity water can be sure that it is not a diamond
2. Penetration observation method:
diamonds have high refractive index, and the higher the refractive index, the stronger the light reflection and the lower the relative perspective. You can prepare a paper with a straight line. The two unknown diamonds to be measured are placed on the straight line with the front facing down. The back of the diamond can be seen directly with the naked eye. If you can see the straight line under the diamond, it is definitely not a natural diamond
3. Lipophilicity method:
diamonds have an "oil absorption property" to oil, while counterfeit diamonds do not. Put a little grease on the face of the diamond and rub the diamond with the thumb. The thumb will feel sticky and not easy to slide, while the fake diamond will make the thumb feel slippery
4. Breath test:
the natural diamond has good heat transfer ability and the hot gas dissipates quickly. The diamond to be tested is close to the mouth, gently breathe, and the diamond to be tested is covered with a layer of mist. At this time, immediately watch the volatilization of the mist of the diamond. If it is a natural diamond, the mist will immediately disperse. Otherwise, the mist will remain on the counterfeit diamond for a while before it will disperse
5. Measurement and weight:
the diameter of a 1-Carat natural diamond is about 6.50 mm (0.65 cm). Under the same 1-Carat weight, the diameter of most counterfeit diamonds is quite different from that of natural diamonds.
1. Specific gravity test method:
there is a specific gravity liquid on the market to measure the specific gravity of gemstones; We can use a specific gravity of 3.32 to test genuine and fake diamonds. The specific gravity of natural diamonds is 3.52. All natural diamonds will sink when placed in specific gravity water. Therefore, any gemstone floating in specific gravity water can be sure that it is not a diamond
2. Penetration observation method:
diamonds have high refractive index, and the higher the refractive index, the stronger the light reflection and the lower the relative perspective. You can prepare a paper with a straight line. The two unknown diamonds to be measured are placed on the straight line with the front facing down. The back of the diamond can be seen directly with the naked eye. If you can see the straight line under the diamond, it is definitely not a natural diamond
3. Lipophilicity method:
diamonds have an "oil absorption property" to oil, while counterfeit diamonds do not. Put a little grease on the face of the diamond and rub the diamond with the thumb. The thumb will feel sticky and not easy to slide, while the fake diamond will make the thumb feel slippery
4. Breath test:
the natural diamond has good heat transfer ability and the hot gas dissipates quickly. The diamond to be tested is close to the mouth, gently breathe, and the diamond to be tested is covered with a layer of mist. At this time, immediately watch the volatilization of the mist of the diamond. If it is a natural diamond, the mist will immediately disperse. Otherwise, the mist will remain on the counterfeit diamond for a while before it will disperse
5. Measurement and weight:
the diameter of a 1-Carat natural diamond is about 6.50 mm (0.65 cm). Under the same 1-Carat weight, the diameter of most counterfeit diamonds is quite different from that of natural diamonds.