Round Square Shape 5mm To 8mm HPHT Synthetic Diamond For Making
Excellent Cut HPHT Diamond
HPHT Lab Grown Diamonds Description
Laboratory-grown diamonds have many different names-laboratory
diamonds, laboratory-made diamonds, laboratory synthetic diamonds,
and even synthetic diamonds. These names indicate that cultivated
diamonds are artificially created in laboratories or factories,
rather than naturally formed or mined from the ground. The
laboratory cultivating diamonds uses advanced technology to
simulate the formation conditions of natural diamonds under the
earth's crust. This formation process is the main factor that
distinguishes laboratory diamonds from natural diamonds. After all,
the chemical, optical, and physical properties of diamonds grown in
the laboratory are exactly the same as natural diamonds.
However, it is difficult to distinguish between cut and polished
laboratory-grown diamonds and natural diamonds with the naked eye.
Professionals can rely on professional testing equipment to
distinguish.
In the laboratory, there are two main processes for the manufacture
of lab grown rough diamonds. The first one is the high-pressure
high-temperature method (HPHT), The second one is chemical vapor
deposition (CVD).
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 HPHT Lab Grown Diamonds
| HPHT Lab Grown Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | HPHT Lab Grown Diamonds |
| Diamond Color | D-F |
| Diamond Clarity | VVS-SI |
| Diamond Carat Weight | 8-9carat |
| Diamond Cut | Round and fancy cut |
| Technology | HPHT |
| Size | Customization |
| 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) |
HPHT 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 | $$$$$ | $$$ |
HPHT Lab Grown Diamonds Details
