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EFG Color 10mm 12mm CVD Diamond Lab Grown 8ct 12ct For DEF Loose Diamond

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
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: EFG Clarity: VVS VS
Carat Weight: 8-12ct 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:

12mm CVD Diamond Lab Grown


10mm CVD Diamond Lab Grown


EFG Color Rough Diamonds

Product Description

Square Shape EFG Color 10mm - 12mm EFG Color Cvd Diamond Lab Grown For DEF Color Loose Diamond Cutting


CVD Lab Grown Diamonds Description


Laboratory diamonds, also known as lab grown diamonds, man made diamonds and synthetic diamonds. At present, there are two main methods to create lab grown diamonds: HPHT(High Temperature and High Pressure) method and CVD(Chemical Vapor Deposition)method.

Both natural diamond and lab grown diamonds are pure carbon crystals, and their physical, chemical, crystal structure and optical properties are same. Due to the different formation conditions, the nature of natural diamonds and cultivated diamonds are also different. However, natural diamonds grow into octahedral crystals (eight equilateral triangular facets), while cultivated diamonds can grow into both octahedral and cubic crystals (six square facets).

HPHT stands for High Pressure High Temperature Method, which is a main method used in laboratories to make diamonds. This diamond growth process requires carbon to be exposed to extreme temperature and pressure conditions, which simulate the extreme heat and pressure conditions when natural diamonds are formed in the depths of the earth.

High temperature and high pressure synthetic diamond technology originated in the 1950s, initially mainly used in aviation and military industry, in the last decade has achieved a qualitative leap in technology, gem grade synthetic diamond in quality and cost has reached the level of marketization.


Parameters of CVD Lab Grown Diamonds


CVD Rough Diamonds Details
Brand Name Yuda Crystal
Name CVD Rough Diamonds
Diamond Color D-F
Diamond Clarity VVS-SI
Diamond Carat Weight 8-12carat
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 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 $$$$$ $$$


CVD Lab Grown Diamonds Details


EFG Color 10mm 12mm CVD Diamond Lab Grown 8ct 12ct For DEF Loose Diamond 0

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