SI Clarity DEF Color Synthetic HPHT Rough Diamonds Created By
Laboratory
Synthetic HPHT Rough Diamonds Description
Lab-grown diamonds, as the name suggests, are diamonds made in a
laboratory.
Many people may think that because they are grown in a laboratory,
they are fake diamonds. In fact, lab diamonds just uses high
technology to simulate the environment in which diamonds are formed
in the earth's crust, and then accumulate carbon atoms layer by
layer to form rough lab diamonds. The rough lab diamonds is no
different from the original diamond dug from the ground. Yes, its
physical and chemical properties are the same, and its molecular
structure is the same, so there is no reason to suspect that it is
a fake diamond, because no one can distinguish it with the naked
eye.
High-temperature and high-pressure synthetic diamond technology
originated in the 1950s, and was initially mainly used in the
aviation and military industries. In the last ten years, the
quality and cost of gem-quality synthetic diamond have reached the
market level.
High-pressure high-temperature (HPHT) diamonds are made by
simulating the high-temperature and high-pressure conditions of
natural diamonds formed on the earth in the laboratory. This
process can produce a unique shape of laboratory-grown diamond
crystals, namely cubic octahedrons.
Synthetic diamond requires a carbon source, a high pressure of
about 50 to 80 KB, and a high temperature of about 1350 degrees
Celsius to 1800 degrees Celsius. In addition, a metal catalyst is
also required. The most commonly used metal catalysts in synthetic
production are nickel, cobalt, iron and alloys of these metals. The
carbon source is melted in the metal catalyst around it until it
reaches the saturation point, after which they crystallize to form
synthetic diamonds.
Parameters of Synthetic HPHT Rough Diamonds
| Synthetic HPHT Rough Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | Synthetic HPHT Rough Diamonds |
| Diamond Color | D-F |
| Diamond Clarity | SI(Low quality) |
| Diamond Carat Weight | 1carat - 20carat |
| Diamond Cut | Uncut, Rough |
| 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) |
Synthetic HPHT Rough Diamonds Introduction
Natural diamonds are created by nature and are the result of high
temperature and pressure formed over billions of years. The 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 Lab Grown Diamonds and natural
diamonds?
There is no obvious difference between the 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 Rough Diamonds Details
