Yuda Crystal VVS Rough Lab Grown White Big Size Synthetic HPHT Man
Made Diamonds
Synthetic HPHT Man Made Diamonds Description
Synthetic diamond is a kind of imitation of natural mineral, which
is no inferior to the original stone. Is the diamond made in the
laboratory real? Of course, they are! Man made diamonds have no
defects and are cleaner and harder than natural diamonds.
Synthetic diamonds are produced in the laboratory in several ways.
Manufacturing them requires expensive equipment and high-quality
raw materials.
Several technologies are being used to produce laboratory grown
diamonds.
The first method is called HPHT or thermogravimetry (temperature
and pressure). The pressure diamonds produced in this way are
relatively cheap because of the low cost. The bottom line is to
heat (1500 degrees) carbon at high pressure (50000 – 70000
environments) with the help of catalyst metals.
CVD is a chemical vapor deposition method. CVD diamond grown by
this method is used in optical and electronic fields. Hydrocarbon
gas (methane) is deposited on silicon wafer by heating (3100
degrees) or microwave radiation. The film thickness is 2-3 mm.
Explosive fusion. Graphite produces an artificial replica under the
high pressure of an explosive explosion.
Ultrasonic cavitation. Under normal conditions, graphite suspension
was added into organic solvent, and artificial minerals were grown
under ultrasonic cavitation.
High pressure and high temperature
Chemical vapor deposition
At present, the first two methods are the most popular.
Parameters of Synthetic HPHT Man Made Diamonds
| Synthetic HPHT Man Made Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | Rough Lab Grown Diamonds |
| Diamond Color | D-F |
| Diamond Clarity | VVS-SI |
| Diamond Carat Weight | 1ct- 18ct |
| Diamond Cut | Uncut |
| Technology | HPHT |
| Size | 5.0-20.0mm |
| Shape | Raw |
| 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 HPHT Man Made 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 | $$$$$ | $$$ |
Synthetic HPHT Man Made Diamonds Details
