White Color 5-7ct VVS VS Synthetic CVD Lab Created Diamonds For
Cutting DEF Color CVD Polish Diamonds
CVD Lab Grown Diamonds Description
Laboratory-grown diamonds have many different names-laboratory
diamonds, laboratory-made diamonds, laboratory synthetic diamonds,
and even synthetic diamonds.
Although laboratory-grown diamonds are formed in different
environments and conditions from natural diamonds, both natural
diamonds and cultivated diamonds are crystals composed of pure
carbon, and the physical properties, chemical properties, crystal
structure and optical properties of the two are exactly the same.
Lab rough diamonds are grown in the laboratory by imitating the
high temperature and high pressure environment of diamonds deep in
the earth.
Due to the different growth environments of laboratory-grown
diamonds and natural diamonds, the shape, clarity and color of the
diamond will be different, so the price will also be different.
However, the price of laboratory-grown diamonds is still relatively
low compared to that of naturally mined diamonds.
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.
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.
Parameters of CVD Lab Grown Diamonds
| CVD Lab Grown Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | CVD Lab Grown Diamonds |
| Diamond Color | G+ |
| Diamond Clarity | VS+ |
| Diamond Carat Weight | 5.0-7.0carat |
| Diamond Cut | Round and fancy cut |
| Technology | CVD |
| Size | 5.0-7.0mm |
| Shape | Round and fancy cut |
| Application | For Cutting Lab Grown Loose Diamonds |
| Place Of Origin | Zhengzhou, China |
| Delivery Time | 1 - 15 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
