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7mm*7mm Square Shape Optical Grade Single Crystal CVD Lab Grown Diamonds
Single Crystal CVD Lab Grown Diamonds Description
Chemical vapor deposition (CVD) is a common method for making of
thin film materials. It uses the chemical reaction of vapor
precursor under specific conditions to deposit the required thin
film materials on a specific substrate. In the preparation of
single crystal diamond materials, methane and hydrogen are usually
used as precursors to grow single crystal diamond by gas phase
epitaxy at high temperature (about 1000 ℃), atmospheric pressure (1
ATM) or low pressure. The single crystal diamond substrates used
can be natural diamond, HPHT diamond or CVD diamond.
The appearance and composition of CVD diamond are almost the same
as that of natural diamond, and the physical and chemical
properties are not very different. Under the naked eye, there is no
difference between CVD diamond and natural diamond. However, the
main reason why CVD diamond is valued is that it is "pure".
Compared with natural diamond, CVD diamond is cleaner and has
almost no impurities.
Parameters of Single Crystal CVD Lab Grown Diamonds
| Single Crystal CVD Lab Grown Diamonds Details | |
| Brand Name | Yuda Crystal |
| Name | Single Crystal CVD Lab Grown Diamonds |
| Diamond Color | White, Colorless or Light brown |
| Grade | Optical Grade Diamond |
| Surface | As Grown Or Laser Cut |
| Thickness | 0.5mm |
| Edge | Laser Cut or Polished |
| Size | 7*7mm, can customize |
| Shape | Can customize |
| Application | For Making Tools |
| Crystal Orientation | 100 110 111 |
| 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 |
| 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) |
Single Crystal CVD 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 | $$$$$ | $$$ |
Single Crystal CVD Lab Grown Diamonds Details
