DEF Color SI VS VVS HPHT Lab Raw Uncut Rough Diamond For Cutting
Lab Diamonds
Lab Raw Uncut Rough Diamond Description
Lab grown diamonds are also named lab created diamonds, man made
diamonds and synthetic diamonds. There are two main methods to
create lab grown diamonds: CVD and HPHT.
Chemical Vapor Deposition is a growth method for cultivating
diamonds. CVD (Chemical Vapor Deposition) diamonds are based on
diamond seeds. With the aid of high-purity methane, hydrogen,
nitrogen and other gases, the carbon molecules in methane and
diamonds are continuously accumulated on the original diamonds in a
microwave oven under high pressure. After layer-by-layer diffusion,
transparent diamonds can be formed. The quality of this lab grown
diamond is almost the same as natural diamonds. CVD diamond is a
high-tech synthetic diamond whose material is mainly carbon, just
like natural diamond. Its hardness, density, thermal conductivity,
brightness, sparkle and fire color are almost the same as natural
diamonds
There is also HPHT (High Pressure High Temperature) method. HPHT
was applied to gem-grade cultivated diamonds earlier, and HPHT
cultivated diamonds appeared in the jewelry market as early as
2010. HPHT diamonds usually have high color while CVD diamonds
usually have high clarity.
Parameters of Lab Raw Uncut Rough Diamond
| Lab Raw Uncut Rough Diamond Details |
| Brand Name | Yuda Crystal |
| Name | Lab Raw Uncut Rough Diamond |
| Diamond Color | DEF |
| Diamond Clarity | VS1-SI2 |
| Diamond Carat Weight | 8.0carat+ |
| Diamond Cut | Uncut |
| Technology | HPHT |
| Size | 5.0-7.0mm |
| 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) |
Lab Raw Uncut Rough Diamond 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 | $$$$$ | $$$ |
Lab Raw Uncut Rough Diamond Details
