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VS Plus 7.0 Carat 8.0 Carat CVD Rough Diamonds Raw Unpolished Diamond For 2ct Ring

Minimum Order Quantity : Negotiate Price : Negotiate
Packaging Details : Carton box Delivery Time : 1-15 working days
Payment Terms : T/T, Western Union Supply Ability : 50000carats per month
Place of Origin: Zhengzhou, China Brand Name: YUDA CRYSTAL
Certification: None Model Number: YD-A+

Detail Information

Product Name: CVD Lab Grown Diamonds Brand: Yuda Crystal
Grade: High Assortment: Good
Color: GH Clarity: VVS VS
Carat Weight: 7.0-8.0ct Cut: Uncut
Technology: CVD Shape: Rough, Raw
Usage: For Cutting CVD Diamonds Component: Carbon
Hardness: Moh's 10 Scale Available Type: HPHT, CVD
Place Of Origin: Zhengzhou, China Payment Terms: 100% Payment In Advance
Payment Mode: T/T, Bank Transfer, PayPal, Western Union Delivery Time: 1-15 Working Days Depends On Quantity
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
High Light:

8.0 Carat CVD Rough Diamonds


7.0 Carat CVD Rough Diamonds


VS Plus raw unpolished diamond

Product Description

Rectangular Shape VS Plus 7.0 - 8.0 Carat Per Pcs CVD Rough Diamonds For 2ct Cvd Diamond Ring Making


CVD Rough Diamonds​ Description


Lab grown diamonds can be made by HPHT(High Pressure and High Temperature) and CVD(Chemical Vapor Deposition) methods. The apperance of HTHP and CVD rough diamonds are different. CVD rough diamonds usually are flat plates.


The lab grown diamonds is divided into different levels and different uses. Industrial grade diamonds are widely used. However, the production difficulty of gem quality diamonds is very different from that of industrial grade diamonds.


In the past, gem quality lab grown diamonds contain many impurities, and they could even be adsorbed by iron absorption stone. It's very difficult for you to distinguish the gem quality lab created diamonds by using the iron absorption stone because of the improvement of the technology. With professional equipment, the comparison of the color, crystal shape and crystal surface characteristics, internal inclusion characteristics, absorption spectrum and ultraviolet fluorescence characteristics of the tested diamonds can "completely distinguish the artificially cultivated diamonds from the natural diamonds". After all, natural diamond crystals were formed billions of years ago, while artificially cultivated diamonds can only be formed in a few days.


Parameters of CVD Rough Diamonds


CVD Rough Diamonds Details
Brand Name Yuda Crystal
Name CVD Rough Diamonds
Diamond Color GHI
Diamond Clarity VVS-VS
Diamond Carat Weight 7.0-8.0carat
Diamond Cut Uncut
Technology CVD
Size 5.0-7.0mm
Shape Raw, Square
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 Rough 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 Rough Diamonds Details


VS Plus 7.0 Carat 8.0 Carat CVD Rough Diamonds Raw Unpolished Diamond For 2ct Ring 0

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