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E F G Color VS 13ct 13.5ct 14Ct CVD Rough Diamonds

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E F G Color VS 13ct 13.5ct 14Ct CVD Rough Diamonds

E F G Color VS 13ct 13.5ct 14Ct CVD Rough Diamonds
E F G Color VS 13ct 13.5ct 14Ct CVD Rough Diamonds E F G Color VS 13ct 13.5ct 14Ct CVD Rough Diamonds E F G Color VS 13ct 13.5ct 14Ct CVD Rough Diamonds

Large Image :  E F G Color VS 13ct 13.5ct 14Ct CVD Rough Diamonds

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

E F G Color VS 13ct 13.5ct 14Ct CVD Rough Diamonds

Product Name: CVD Lab Grown Diamonds Brand: Yuda Crystal
Grade: High Assortment: Good
Color: EFG Clarity: VS
Carat Weight: 13-14ct 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:

14Ct CVD Rough Diamonds


13.5ct CVD Rough Diamonds


13ct diamond uncut

Square Shape E F G Color VS Purity 13.0 - 14.0 Carat CVD Rough Diamonds For 4carat DEF Color Lab Diamonds


CVD Rough Diamonds Description


Lab created diamonds, as the name suggests, are diamonds made in a laboratory.
Many people may think that because they are grown in a laboratory, they are all fake diamonds. In fact, grow diamonds just uses advanced technology to simulate the environment in which diamonds are formed in the earth's crust, and then accumulate carbon atoms layer by layer to form lab grown rough stones. The lab created rough diamonds is no different from the natural diamond from the underground. Actually its physical and chemical properties are the same, and its molecular structure is the same, so there is no reason to suspect that it is a fake diamond, because no one can distinguish it with the naked eye.
High temperature and high pressure technology originated in the 1950s, and was initially mainly used in the aviation and military industries. In the last ten years, the quality and cost of gem grade synthetic diamond have reached the market level.
High pressure high temperature (HPHT) diamonds are made by simulating the high-temperature and high-pressure conditions of natural diamonds formed on the earth in the laboratory. This process can produce a unique shape of laboratory-grown diamond crystals, namely cubic octahedrons.

Synthetic diamond requires a carbon source, a high pressure of about 50 to 80 KB, and a high temperature of about 1350 degrees Celsius to 1800 degrees Celsius. In addition, a metal catalyst is also required. The carbon source is melted in the metal catalyst around it until it reaches the saturation point, after which they crystallize to form synthetic diamonds.


Parameters of CVD Rough Diamonds

CVD Rough Diamonds Details
Brand Name Yuda Crystal
Name CVD Rough Diamonds
Diamond Color E-F-G
Diamond Clarity VS
Diamond Carat Weight 13.0-14.0carat
Diamond Cut Uncut
Technology CVD
Size Customization
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 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 $$$$$ $$$


CVD Rough Diamonds Details


E F G Color VS 13ct 13.5ct 14Ct CVD Rough Diamonds 0

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