100% Clean And Pure CVD Man Made Lab Created Diamonds For Making
Cvd Diamond Jewelry
CVD Lab Grown Diamonds Description
Lab-grown diamonds are real diamonds.
There are two ways to create rough lab-grown diamonds. They are
HPHT and CVD methods.
The HPHT diamond cultivation process takes place in a small capsule
in a device with ultra-high pressure. In this capsule, the diamond
powder is dissolved in the molten metal solvent, and then begins to
crystallize to form diamond crystals. The entire crystallization
process will take weeks or even months. At a time, one or more
crystals are produced.
In order to cultivate colorless HPHT diamonds, apart from the need
to isolate nitrogen during the cultivation process, the cultivation
of high-purity colorless diamonds (type IIa or weak type IIb) often
requires a longer cultivation period and stricter temperature and
pressure conditions. As a result, the cultivation cycle is longer
than that of type Ib synthetic diamonds, so how to use HPHT
synthesis to grow large-grain crystals has always been a problem.
However, with the development of technology, it is now possible to
use HPHT synthesis to grow more than 10 carats Diamond crystals
too.
Chemical Vapor Deposition (CVD) is a method of decomposing raw
materials at high temperatures to produce active particles such as
carbon atoms or methyl groups, and depositing and growing a diamond
film on the substrate (substrate) under certain process conditions
Methods.
CVD-grown synthetic diamonds do not contain metal inclusions. But
they usually contain dark graphite inclusions or other mineral
inclusions, which are formed during their unique growth process.
Graphite inclusions are different from metal inclusions in that
they have no metallic luster.
Whether laboratory-grown diamonds or natural diamonds, loose
diamonds after cutting and polishing can not be distinguished by
the naked eye. It can be detected only with the help of
professional equipment. With professional equipment, the comparison
of the color, crystal shape and crystal surface characteristics,
internal inclusion characteristics, absorption spectrum and
ultraviolet fluorescence characteristics of the tested diamonds can
completely distinguish the artificially cultivated diamonds from
the natural diamonds
Parameters of CVD Lab Grown Diamonds
| CVD Lab Grown Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | CVD Lab Grown Diamonds |
| Diamond Color | D-F |
| Diamond Clarity | VVS-VS |
| Diamond Carat Weight | 3.0-15.0carat |
| Diamond Cut | Round, Fancy |
| Technology | CVD |
| Size | Customization |
| Shape | Round, Fancy |
| 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
