1.0ct 2.0ct VVS VS SI Clarity DEF Color Round Brilliant Cut Loose Diamond For Necklace
Lab Grown Diamonds Description
Basically, diamonds and natural diamonds cultivated in the laboratory have the same physical properties, chemical composition and crystal structure as natural diamonds. It cannot be called a fake diamond, but the "growth" trajectory and environment of artificial diamonds and natural diamonds are different. One is polished for hundreds of millions of years, and the other is to simulate the growth environment of natural diamonds, which takes several months to grow.
Diamonds cultivated in the laboratory are essentially the same as natural diamonds. Even though the hardness is the same, the biggest difference is the way of formation.
Characteristics Of Lab Grown Diamonds
There are two large-scale diamond deposition methods on the market: chemical vapor deposition, CVD and high pressure high temperature, high temperature high pressure, HPHT.
(1) High temperature and high pressure (HPHT) diamond cultivation technology: the first generation diamond growth technology, which completely simulates the growth process of natural diamond, reproduces the reaction of ground carbon layer, and converts graphite into diamond grown in the laboratory;
(2) Chemical vapor deposition (CVD) diamond culture technology: The diamond is grown in a high temperature and low pressure environment using microwave, using sand particles or small pieces to the size of diamond as seeds. The carbon atoms are added in the plasma reactor to 5537 ℃, so that the atoms can attach to the thin diamond crystals one by one. The "growth" gradually becomes a large diamond cultivated in the laboratory.
| The Difference Between Lab Diamond And Natural Diamond |
| Attribute | Lab Grown Diamonds | Natural diamond | Distinction |
| Chemical composition | C(carbon) | C(carbon) | No |
| Refractive index | 2.42 | 2.42 | No |
| Relative density | 3.52 | 3.52 | No |
| Dispersion | 0.044 | 0.044 | No |
| Hardness value | 90 GPA | 90 GPA | No |
| Thermal conductivity | 2*103 W/M/K | 2*103 W/M/K | No |
| Thermal property | 0.8*10-6 K | 0.8*10-6 K | No |
| Light transmittance | DEEP UV TO FAR TR | DEEP UV TO FAR TR | No |
| Resistivity | 1016 OHM-CM | 1016 OHM-CM | No |
| Compressibility | 8.3*10-13 M2/N | 8.3*10-13 M2/N | No |
From a scientific point of view, cultivated diamonds are exactly the same as natural diamonds, the only difference being where they are formed.
Prospects And Advantages Of Lab Grown Diamonds
Through the reflection of major diamond dealers, we can see that the diamond industry does not exclude the cultivation of diamonds, but the diamond cultivated in the laboratory and the natural diamond are still two completely different concepts. Most practitioners hope to see more regulation of the industry, which will enable consumers to better distinguish between artificially cultivated diamonds and natural diamonds, and draw a relatively clear line between laboratory cultivated diamonds and natural diamonds.
After all, diamonds cultivated in the laboratory are real diamonds. Diamonds produced in the laboratory are "gems" produced in the laboratory and are design elements of daily accessories in the middle and low-end markets. Laboratory grown diamonds are used for wearing.
Lab Grown Diamonds Details
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