Home Companies Henan Yuda Crystal Co.,Ltd

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

Henan Yuda Crystal Co.,Ltd

Contact Us

[China] country

Trade Verify

Address: ROOM 1524, 15TH FLOOR, NO.56 ZIJINGSHAN ROAD, GUANCHENG DISTRICT, ZHENGZHOU, HENAN, CHINA

Contact name:Pang

Inquir Now

Henan Yuda Crystal Co.,Ltd

Verified Suppliers
  • Trust
    Seal
  • Verified
    Supplier
  • Credit
    Check
  • Capability
    Assessment

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

Country/Region china
City & Province zhengzhou henan
InquireNow

Product Details

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 CutUncut
TechnologyCVD
SizeCustomization
ShapeRaw, Square
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

 

Hot Products

10 Carat To 16 Carat 100% Real Rough Diamond CVD Lab Grown Diamonds For Cutting Cvd Loose Diamonds ...
Place Of Origin China EF Color CVD Lab Created Diamond For Making High Quality Cvd Certificate ...
Good Color EF Color Without HPHT Process CVD Lab Grown Diamonds For Making DEF Color VVS VS Cvd ...
Round Square Shape 5mm To 8mm CVD Synthetic Diamond For Making Excellent Cut Cvd Diamond CVD Lab ...
Rectangular Long Shape 3carat 4carat 5carat CVD Lab Made Diamond For Making Fancy Cut Cvd Diamond ...
White E F G Color 10 Carat To 20 Carat CVD Lab Grown Diamonds For Making 3 Carat 5 Carat Big Size ...