In the previous part, we talked about real diamonds and fake drills. Today I will tell you how to make it simple and false.
Let’s review the various parameters of the diamond and the other two stones. Some of these values can directly reflect the surface of the gem:
Synthetic cubic oxidation 方
Dual refractive index
1. Fire Cai
There are many ways to distinguish between real diamonds and imitation diamonds, but it is more identified under the conditions of laboratory. It is more difficult to distinguish the naked eye. The color scattered is relatively different, which means that the fire color will be different when the comparison is together.
The fire color we often say is reflected in the scattered color. The greater the color scattered, the stronger the fire color. So this is why fake drills “flash” than real diamonds.
It can be seen from the table that the color of the diamond is 0.044, and the color of Mozangstone reaches 0.104, so the fire color of Mozang Stone is stronger than the diamond.
Another is to distinguish from the color of the fire color.
Most of them, there are few rainbow -like fire; while synthetic cubic oxidative fire color color is diverse, and
Most, especially in the sun, it is easier to observe.
2. Facedown with the shadow
The gem or imitation diamond that can observe the shadow of the face must be a material with dual refraction. When the double refraction is large, it can form a obvious phenomenon of face -to -face edges. distinguish.
Observing the phenomenon of face -to -face edge shadow can be seen under the 10X magnifying glass. The larger the stone, the more obvious the more obvious the stone
The double refractives of vermiculite, lithium tadpartate, synthetic golden stone and Mosangstone are:
0.059, 0.090, 0.278, 0.043
You can obviously observe it under the 10X magnifying glass.
When observing, pay attention to observation from different perspectives to prevent mistakes. The most observed angle is to see from the kite of the stone (the main face of the crown).
3. Large hydrophobic test
Using oil -based pen can draw continuous lines on the diamond, while the imitation diamond drawing lines are not continuous.
Diamonds have strong adsorption of oil, and fingerprints will be left on the surface of the diamond after touching it with their hands. So the younger sister at the counter must wear gloves with jewelry,
It is not recommended to wear diamond jewelry when cooking. Oil attached to the surface of the diamond will affect the gloss and firecolor, making the diamond look like a layer of mist. Simple maintenance at home is to wipe the surface slightly with alcohol (for organic gemstone), or use professional instruments to take it to the store.
Diamonds have high
Water droplets will not spread on the diamond. But this experiment must ensure that the diamond surface is extremely clean to succeed.
In addition, most imitation diamonds can also form water droplets similar to diamonds on the surface, such as CZ, YAG, vermiculite, etc. Therefore, this method is not highly practical, and be careful of bad businesses to sell fakes by using this.
4. Perspective effect
The perspective effect refers to the clarity of seeing the image of the crown on the side of the crown through the sample.
This method is only applicable to distinguish the diamonds and imitation diamonds that are not inlaid.
The experimental method is:
On the white paper with black lines, the diamond or imitation diamond table faces the black line, placed on the black line, and observes the black line pressed under the table vertically through the sample on the side of the pavilion.
The standard round diamonds that are cut well do not see the black line, but the imitation diamonds with high refractive indexes such as: titanate and synthetic golden stone also cannot see the black line. This method is only applicable to other imitation drills with lower refractive indexes, which can be seen in black lines. The lower the refractive index of the imitation diamond material, the easier it is to observe.
The above methods are simple methods that are not under laboratory conditions. Subjects with doubt are still recommended to send professional authoritative institutions for identification.
When buying, you must also obtain an appraisal certificate, one thing and one certificate, whether it is online or physical store purchase.
For the article, there is help to repost the collection, or you can leave a comment and commented on the experience of jewelry.