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VVS VS CVD Diamonds 16 Carat To 4 Carat Man Made Diamond

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VVS VS CVD Diamonds 16 Carat To 4 Carat Man Made Diamond

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 : EFG

Clarity : VVS VS SI

Carat Weight : 4-16ct

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

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VVS VS Clarity CVD Rough Lab Grown Diamonds Created From Cvd Diamond Seed By CVD Method

CVD Lab Grown Diamonds Description

Diamonds are the hardest material in nature.
Lab-grown rough diamonds are synthesized in a few weeks, while the development of natural diamonds takes billions of years.
In the laboratory, there are two main processes for the manufacture of lab grown rough diamonds.

1. High pressure and high temperature (HPHT)

The laboratory simulates the high temperature and pressure conditions of natural diamonds when they are formed underground. HPHT diamonds are manufactured at a pressure of 5-6 GPA (approximately the pressure produced by a commercial jet landing on a human fingertip) and a temperature of 1300-1600°C.
2. Chemical Vapor Deposition (CVD)
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. Scientists are able to manufacture synthetic diamonds at moderate temperatures (700°C to 1300°C) and low pressures. The carbon-containing gas is pumped into the vacuum chamber, deposited on the diamond seed, and crystallized into rough laboratory-grown diamonds. The final size of the diamond depends on the time allowed to grow.

Parameters of CVD Lab Grown Diamonds

CVD Lab Grown Diamonds Details
Brand Name Yuda Crystal
Name CVD Lab Grown Diamonds
Diamond Color E-G
Diamond Clarity VVS-SI
Diamond Carat Weight 4.0-15.0carat
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

VVS VS CVD Diamonds 16 Carat To 4 Carat Man Made Diamond


Product Tags:

VVS VS Rough CVD Diamonds

      

Rough CVD Diamonds 16 Carat

      

4 Carat Man Made Diamond

      
Wholesale VVS VS CVD Diamonds 16 Carat To 4 Carat Man Made Diamond from china suppliers

VVS VS CVD Diamonds 16 Carat To 4 Carat Man Made Diamond Images

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