5 Carat 6 Carat 7 Carat GHI Color CVD Lab Diamonds For Making EFG
Color 1carat 2carat 3carat Cvd Loose Diamond
CVD Lab Grown Diamonds Description
The diamonds grown in the laboratory are also real diamonds. They
have the same chemical composition and crystal structure as natural
diamonds.
So how are cultivated diamonds made? Two methods are mainly used
now. One is the high-pressure high-temperature method (HPHT), which
creates high-pressure and high-temperature environments in
laboratories to produce diamonds, which is to imitate the formation
conditions of natural diamonds in the depths of the earth.
The second is chemical vapor deposition (CVD), which uses
carbon-rich gas in the vacuum chamber of the laboratory to produce
cultivated diamonds. The production process of the CVD process is
to first decompose the methane gas molecules into carbon and
hydrogen atoms, and then deposit them on the diamond seed crystals
to form square flat cultivated diamond crystals.
It usually takes several weeks to manufacture cultivated diamonds
in the laboratory.
The physical and chemical properties of laboratory-grown diamonds
and natural diamonds are exactly the same as those of natural
diamonds. Lab-Created diamonds are real diamonds.
Parameters of CVD Lab Grown Diamonds
| CVD Lab Grown Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | CVD Lab Grown Diamonds |
| Diamond Color | E-G |
| Diamond Clarity | VVS-SI |
| Diamond Carat Weight | 5.0-7.0carat |
| Diamond Cut | Round and fancy cut |
| Technology | CVD |
| Size | Customization |
| Shape | Round and fancy cut |
| Application | For Cutting Lab Grown Loose Diamonds |
| Place Of Origin | Zhengzhou, China |
| Delivery Time | 1 - 7 Working Days Base on Order Quantity |
| Payment Terms | 100% Payment In Advance |
| Payment Methods | T/T, PayPal, Western Union, Bank Transfer |
| Shipping way | DHL, FedEx, SF Express, UPS, EMS, TNT etc |
| M.O.Q | Negotiable |
| Diamond Type | Synthetic(lab created) |
| Location | Zhengzhou, China |
| Treatments Applied | None |
| Fire Dispersion | 0.044(Same as Natural Diamond) |
| Brilliance Refraction Index | 2.42(Same as Natural Diamond) |
| Relative Density | 3.52(Same as Natural Diamond) |
| Chemical Composition | Carbon(Same as Natural Diamond) |
| Moh's Hardness | 10(Same as Natural Diamond) |
CVD Lab Grown Diamonds Introduction
Natural diamonds are created by nature and are the result of high
temperature and pressure formed over billions of years. The Rough
Lab Grown Diamonds are produced in the laboratory, usually in a few
weeks. The chemical difference between the two is same.
So how do you distinguish between Rough Lab Grown Diamonds and
natural diamonds?
There is no obvious difference between the Rough Lab Grown Diamonds
and natural diamonds. Even professional gemologists need special
equipment to identify them. By zooming in, professionals will be
able to discern subtle contrasts in diamond inclusions grown and
mined in the laboratory.
| The Difference Between Lab Diamond And Natural Diamond |
| Properties | Earth Mined | Lab Created |
| Guaranteed Conflict-Free | No | Yes |
| Hardness (MOHS) | 10 | 10 |
| SP3 Carbon Diamond Bonds (%) | 100% | 100% |
| Internal Crystal Structure | Face-Centered Cubic | Face-Centered Cubic |
| Hardness Comparable | 2.42 | 2.42 |
| Relative Diversity | 3.52 | 3.52 |
| Color Diffusion | 0.044 | 0.044 |
| Color | Various Grades | K to D grades |
| Price | $$$$$ | $$$ |
CVD Lab Grown Diamonds Details
