Yuda Crystal 0.5 carat to 20 carat White Colorless Super VVS
Quality Rough Lab Grown HPHT Synthetic Diamond
Rough Lab Grown HPHT Synthetic Diamond Description
Lab grown diamonds are made in the laboratory. There are two main
methods to make Rough Lab Grown HPHT Synthetic Diamond: one is high
pressure and high temperature method (HPHT), the other is chemical
vapor deposition method (CVD).
HPHT(High Pressure and High Temperature) method is the primary
method used to grow lab grown rough diamonds. Currently the world's
popular HPHT synthetic diamond making equipment mainly includes two
side top, six side top and bar split sphere or improved split
sphere.
Since diamonds can be created by equipment, will people be cheated
by using the price of natural diamonds to buy lab diamonds?
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 lab grown diamonds from the natural diamonds. After all,
natural diamonds were formed billions of years ago, while lab grown
diamonds can only be formed in a few days. There is no difference
between the two, and it can be completely distinguished by
professional testing tools.
Parameters of Lab Grown HPHT Rough Diamonds
| HPHT Lab Grown Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | Rough Lab Grown Diamonds |
| Diamond Color | D-F |
| Diamond Clarity | VVS-SI |
| Diamond Carat Weight | 0.40-20.00 carat |
| 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 - 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) |
Rough Lab Grown HPHT Synthetic 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 | $$$$$ | $$$ |
Rough Lab Grown HPHT Synthetic Diamond Details
