3mm 4mm 5mm D E Color VVS VS Clarity Rough Lab Grown Diamonds For
Making Small Size Lab Diamonds
Rough Lab Grown Diamonds Description
The lab grown diamonds are also real diamonds. They have the same
chemical composition and crystal structure as natural diamonds.
However, the manufacturing process of laboratory-grown 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 lab diamonds from natural
diamonds. After all, in terms of chemical, optical and physical
properties and crystal structure, lab grown diamonds are basically
the same as natural diamonds. Although the place and conditions of
formation are different, the essence is the same.
So how are cultivated diamonds made? Two methods are mainly used
now. One is the high-pressure high-temperature method (HPHT), which
creates high-pressure and high-temperature environments in
laboratories or factories to produce diamonds, which is to imitate
the formation conditions of natural diamonds in the depths of the
earth. In the growth chamber, the carbon source is decomposed in
the molten metal, and the carbon atoms are gathered on a small
cultivated or natural diamond seed through the metal to form a
cultivated diamond crystal with a unique shape.
The second is chemical vapor deposition (CVD), which uses
carbon-rich gas (such as methane) in the vacuum chamber of the
laboratory to produce cultivated diamonds. The production process
of the CVD process is to first decompose the methane gas molecules
into carbon and hydrogen atoms, and then deposit them on the
diamond seed crystals to form square flat cultivated diamond
crystals.
It usually takes several weeks to manufacture cultivated diamonds
in the laboratory. Compared to the millions or even billions of
years of formation of natural diamonds deep in the earth, this time
is very short.
Parameters of Rough Lab Grown Diamonds
| Rough Lab Grown Diamonds Details |
| Brand Name | Yuda Crystal |
| Name | Rough Lab Grown Diamonds |
| Diamond Color | D-F |
| Diamond Clarity | VVS-SI |
| Diamond Carat Weight | 0.2 - 0.6 carat |
| Diamond Cut | Uncut |
| Technology | HPHT |
| Size | 3.0-5.0mm |
| 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) |
Rough 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 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 | $$$$$ | $$$ |
Rough Lab Grown Diamonds Details
