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Brand Name : YUDA CRYSTAL
Model Number : YD-A+
Certification : None
Place of Origin : Zhengzhou, China
MOQ : Negotiate
Price : Negotiate
Payment Terms : 100% Payment In Advance
Supply Ability : 50000carats per month
Delivery Time : 1-7 Working Days Depends On Quantity
Packaging Details : Carton box
Product Name : CVD Lab Grown Diamonds
Brand : Yuda Crystal
Grade : High
Assortment : Good
Color : GH
Clarity : VVS VS
Carat Weight : 8.0-8.99ct
Cut : Round and fancy cut
Technology : CVD
Shape : Round and fancy cut
Usage : For Cutting CVD Diamonds
Component : Carbon
Hardness : Moh's 10 Scale
Available Type : HPHT, CVD
Place Of Origin : Zhengzhou, China
Payment Mode : T/T, Bank Transfer, PayPal, Western Union
Courier : DHL, FedEx, UPS, TNT, EMS etc
Packaging : As Export Standard
Customization : Welcome
Polish : None
Symmetry : None
Sample Order : Welcome
Treatments Applied : None
Enhancement : None
VS VVS Purity GH Color 8.0-9.0ct CVD Lab Grown Diamonds For Making 2 Carat Lab Grown Cvd Diamonds
CVD Lab Grown Diamonds Description
Diamonds are made of pure carbon in the shape of a tetrahedron. Diamonds are famous all over the world as luxury and precious jewelry. However, it is also the hardest substance in nature, a good heat conductor and an inert substance. These characteristics mean that diamonds can play an important role in some industrial applications, such as metal cutting, drilling, grinding, mining and construction, as well as applications in high-pressure testing and high-performance bearings.
For a long time, people believed that diamonds could only be "man-made" under high pressure and high temperature conditions, imitating the formation of natural diamonds. The use of this method to make diamonds is now very common, mainly for the aforementioned industrial applications. However, in the late 1980s, scientists discovered how to use a method called chemical vapor deposition (CVD) to "plant" diamonds.
Diamonds produced by CVD are produced by mixing hydrocarbons, usually methane, with hydrogen in a low-pressure vacuum chamber. The diamond will grow in a few days until it reaches the size required for the specific application. This process requires a constant, stable and reliable source of hydrogen, which makes Peak's hydrogen generator an ideal solution.
Normally, when methane and hydrogen are mixed, carbon is produced in a non-diamond form, such as graphite. In the CVD chamber, microwave energy, electric discharge, or hot cathode is used to generate hydrogen atoms, which react with non-diamond carbon to form vapor. Highly active hydrocarbon vapors will further react with hydrogen atoms, resulting in the separation of hydrogen and pure carbon, and pure carbon is deposited as diamonds. With the repetition of this process, the diamond can grow into different sizes according to the required application.
Parameters of CVD Lab Grown Diamonds
CVD Lab Grown Diamonds Details | |
Brand Name | Yuda Crystal |
Name | CVD Lab Grown Diamonds |
Diamond Color | D-F |
Diamond Clarity | VVS-SI |
Diamond Carat Weight | 8.0-9.0carat |
Diamond Cut | Round and fancy cut |
Technology | CVD |
Size | Customization |
Shape | Round and fancy cut |
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) |
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 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 | $$$$$ | $$$ |
CVD Lab Grown Diamonds Details
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VS VVS GH Color 8ct 9ct CVD Lab Grown Diamonds 9 Carat Diamond Images |