Rectangular Shape 7mm - 9mm GH Color Rough Raw Cvd Diamond For
Synthetic Cvd Diamond Ring Making
Synthetic Cvd Diamond Description
The lab grown diamonds is made by using high technology to simulate
the environment in which natural diamonds are formed in the earth's
crust.
Although synthetic diamonds are manufactured in factories, their
chemical and physical properties are very close to natural
diamonds.
In the 1950s, scientists made diamonds in the laboratory for the
first time. However, the diamonds manufactured at that time were
too small to be suitable for jewelry. Nowadays, more and more
companies are engaged in synthetic diamond manufacturing business.
Many countries and regions are manufacturing synthetic diamonds for
jewelry and industrial purposes.
CVD and HPHT are two main methods to make lab diamonds nowadays.
The traditional diamond manufacturing method is called the high
pressure/high temperature (HPHT) method. It uses a device to
simulate the high pressure and high temperature conditions of
natural diamonds, and uses carbon materials in the device to
produce synthetic diamonds.
A relatively new method called chemical vapor deposition (CVD) is
to inject carbon-containing gas into a vacuum chamber and deposit
its crystals on synthetic diamond seeds. This method requires lower
temperature and lower pressure than the high-pressure
high-temperature method. Both methods are currently very popular
diamond manufacturing methods. The initial equipment cost of using
the chemical vapor precipitation method to manufacture diamonds is
lower than that of the high-pressure and high-temperature method,
but the diamonds manufactured using this method require subsequent
processing to improve the color.
Parameters of Synthetic Cvd Diamond
| CVD Rough Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | CVD Rough Diamonds |
| Diamond Color | D-F |
| Diamond Clarity | VVS-SI |
| Diamond Carat Weight | 8.0-10.0carat |
| Diamond Cut | Uncut |
| Technology | CVD |
| Size | Customization |
| Shape | Raw, Square |
| 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) |
Synthetic Cvd Diamond 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 | $$$$$ | $$$ |
Synthetic Cvd Diamond Details
