Square Shape 12mm - 14mm FG Color Rough Synthetic HPHT Diamond Made
By HPHT Diamond Equipment
HPHT Lab Grown Diamonds Description
Lab diamonds, also known as cultured diamonds and synthetic
diamonds. Nowadays, there are two main methods to create lab grown
diamonds. The two methods are HPHT and CVD methods.
HPHT means High pressure high pressure. It imitates the formation
process of natural diamond, puts seeds under great mechanical
pressure, and exerts great pressure and high temperature on
ready-made carbon. Seeds will quickly turn into diamonds with
carbon lattice and grow layer by layer in a few days until they
reach the desired carat weight.
Another 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 HPHT Lab Grown Diamonds
| HPHT Rough Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | HPHT Rough Diamonds |
| Diamond Color | DEF |
| Diamond Clarity | VVS-SI |
| Diamond Carat Weight | 10.0-11.0carat |
| Diamond Cut | Uncut |
| Technology | HPHT |
| 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) |
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
