EF Color CVD Lab Grown Diamonds VVS VS 8.0 Carat 9.0 Carat 10.0 Carat

Brand Name:YUDA CRYSTAL
Certification:None
Model Number:YD-A+
Minimum Order Quantity:Negotiate
Delivery Time:1-7 Working Days Depends On Quantity
Payment Terms:100% Payment In Advance
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Location: Zhengzhou Henan China
Address: ROOM 1524, 15TH FLOOR, NO.56 ZIJINGSHAN ROAD, GUANCHENG DISTRICT, ZHENGZHOU, HENAN, CHINA
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Good Color EF Color Without HPHT Process CVD Lab Grown Diamonds For Making DEF Color VVS VS Cvd Diamonds


CVD Lab Grown Diamonds Description


What is a lab-grown diamond?
Lab diamonds are real diamonds. Lab-grown diamonds after polishing and cutting are no different from natural diamonds. Carbon is the main element of natural and laboratory-grown diamonds. Lab-grown diamonds are diamonds grown in the laboratory using equipment that simulate the growth environment of natural diamonds. Both laboratory-grown diamonds and natural diamonds are real diamonds. The main chemical components of laboratory-grown diamonds and natural diamonds are carbon.
Beginning in the 1930s, scientists discovered that certain types of diamonds have similar characteristics, so they divided diamonds into two categories based on the difference in transparency under ultraviolet radiation: Type I and Type II. Subsequently, the scientists further divided type I and type II diamonds into two sub-categories: type Ia, type Ib, type IIa and type IIb through the arrangement of carbon atoms and impurity atoms in the diamond structure.
Most synthetic diamonds are of type Ib, IIa and IIb.

HTHP and CVD are the two main methods for making laboratory-grown diamonds.

First of all, what are HTHP and CVD?

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.


Parameters of CVD Lab Grown Diamonds


CVD Lab Grown Diamonds Details
Brand NameYuda Crystal
NameCVD Lab Grown Diamonds
Diamond ColorD-F
Diamond ClarityVVS-SI
Diamond Carat Weight8.0-10.0carat
Diamond CutRound and fancy cut
TechnologyCVD
SizeCustomization
ShapeRound and fancy cut
ApplicationFor Cutting Lab Grown Loose Diamonds
Place Of OriginZhengzhou, China
Delivery Time1 - 15 Working Days Base on Order Quantity
Payment Terms100% Payment In Advance
Payment MethodsT/T, PayPal, Western Union, Bank Transfer
Shipping wayDHL, FedEx, SF Express, UPS, EMS, TNT etc
M.O.QNegotiable
Diamond TypeSynthetic(lab created)
LocationZhengzhou, China
Treatments AppliedNone
Fire Dispersion0.044(Same as Natural Diamond)
Brilliance Refraction Index2.42(Same as Natural Diamond)
Relative Density3.52(Same as Natural Diamond)
Chemical CompositionCarbon(Same as Natural Diamond)
Moh's Hardness10(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
PropertiesEarth MinedLab Created
Guaranteed Conflict-FreeNoYes
Hardness (MOHS)1010
SP3 Carbon Diamond Bonds (%)100%100%
Internal Crystal StructureFace-Centered CubicFace-Centered Cubic
Hardness Comparable2.422.42
Relative Diversity3.523.52
Color Diffusion0.0440.044
ColorVarious GradesK to D grades
Price$$$$$$$$

CVD Lab Grown Diamonds Details


China EF Color CVD Lab Grown Diamonds VVS VS 8.0 Carat 9.0 Carat 10.0 Carat supplier

EF Color CVD Lab Grown Diamonds VVS VS 8.0 Carat 9.0 Carat 10.0 Carat

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