Henan Yuda Crystal Co.,Ltd

Henan Yuda Crystal Co.,Ltd

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White VVS VS CVD Synthetic Diamond 7ct 6ct 5ct Lab Grown Diamond

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Henan Yuda Crystal Co.,Ltd
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City:zhengzhou
Province/State:henan
Country/Region:china
Contact Person:MsPang
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White VVS VS CVD Synthetic Diamond 7ct 6ct 5ct Lab Grown Diamond

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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 :1-15 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
Carat Weight :5-7ct
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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White Color 5-7ct VVS VS Synthetic CVD Lab Created Diamonds For Cutting DEF Color CVD Polish Diamonds

CVD Lab Grown Diamonds Description

Laboratory-grown diamonds have many different names-laboratory diamonds, laboratory-made diamonds, laboratory synthetic diamonds, and even synthetic diamonds.
Although laboratory-grown diamonds are formed in different environments and conditions from natural diamonds, both natural diamonds and cultivated diamonds are crystals composed of pure carbon, and the physical properties, chemical properties, crystal structure and optical properties of the two are exactly the same. Lab rough diamonds are grown in the laboratory by imitating the high temperature and high pressure environment of diamonds deep in the earth.
Due to the different growth environments of laboratory-grown diamonds and natural diamonds, the shape, clarity and color of the diamond will be different, so the price will also be different. However, the price of laboratory-grown diamonds is still relatively low compared to that of naturally mined diamonds.
HTHP and CVD are the two main methods for making laboratory-grown diamonds.

HTHP: High temperature and high pressure method (HTHP) uses graphite as raw material, introduces suitable metal catalysts, such as Fe, Co, Ni, Mn, Cr, etc., and can synthesize diamond at temperatures above 2000K and tens of thousands of atmospheres.

CVD: Chemical Vapor Deposition (CVD) is a method of decomposing raw materials at high temperatures to produce active particles such as carbon atoms or methyl groups, and depositing and growing a diamond film on the substrate (substrate) under certain process conditions Methods.

Whether laboratory-grown diamonds or natural diamonds, loose diamonds after cutting and polishing can not be distinguished by the naked eye. It can be detected only with the help of professional equipment.

Parameters of CVD Lab Grown Diamonds

CVD Lab Grown Diamonds Details
Brand Name Yuda Crystal
Name CVD Lab Grown Diamonds
Diamond Color G+
Diamond Clarity VS+
Diamond Carat Weight 5.0-7.0carat
Diamond Cut Round and fancy cut
Technology CVD
Size 5.0-7.0mm
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

White VVS VS CVD Synthetic Diamond 7ct 6ct 5ct Lab Grown Diamond

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