Synthetic Lab Created GHI Color VS Plus Clarity CVD Lab Grown
Diamonds For Making FGH VS Quality Cvd Diamond
CVD Lab Grown Diamonds Description
What is a lab-grown diamond?
Natural diamonds come from the earth, and laboratory-grown diamonds
do not grow on the earth, but grow in the laboratory. After the
laboratory-grown diamonds are cut and polished, there is no visual
difference between them and natural diamonds.
Similarly, laboratory-grown diamonds are as hard as natural
diamonds. Carbon is the main element of natural and
laboratory-grown diamonds.
By 1959, scientists discovered that the main chemical impurity in
diamonds was nitrogen, which is contained in type I diamonds, but
not contained in type II diamonds. Using infrared spectroscopy can
quickly determine the type of diamond.
Most natural diamonds are type Ia. Type Ia diamonds contain
abundant nitrogen in clusters or pairs. This type of diamond cannot
currently be cultivated artificially. Type Ib diamonds contain
unpaired or clustered scattered nitrogen atoms, which are rare in
natural diamonds. Type IIa diamond contains almost no nitrogen. The
IIb diamond contains boron atoms.
Most synthetic diamonds are of type Ib, IIa and IIb.
HTHP and CVD are the two main methods for making laboratory-grown
diamonds.
HTHP: High temperature and high pressure method (HTHP) uses
graphite as raw material, introduces suitable metal catalysts, such
as Fe, Co, Ni, Mn, Cr, etc., and can synthesize diamond at
temperatures above 2000K and tens of thousands of atmospheres.
CVD: 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.
Parameters of CVD Lab Grown Diamonds
| CVD Lab Grown Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | CVD Lab Grown Diamonds |
| Diamond Color | G-I |
| Diamond Clarity | VVS-VS |
| Diamond Carat Weight | 3.0-10.0carat |
| 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
