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DEF VS SI 1.2mm 1.3mm 1.4mm Man Made Melee Diamonds For Rings

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DEF VS SI 1.2mm 1.3mm 1.4mm Man Made Melee Diamonds For Rings

Country/Region china
City & Province zhengzhou henan
Categories Ceramic Fiber Products
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Product Details

DEF VS-SI 1.2mm 1.3mm 1.4mm Man Made Melee Diamonds For Diamond Rings

 

Man Made Melee Diamonds Description

 

Diamonds are famous all over the world as luxury and precious jewelry. However, it is also the hardest substance in nature, a good heat conductor and an inert substance. These characteristics mean that diamonds can play an important role in some industrial applications, such as metal cutting, drilling, grinding, mining and construction, as well as applications in high-pressure testing and high-performance bearings.

Lab grown diamonds is usually produced by chemical vapor deposition (CVD) or high pressure high temperature (HPHT).

For a long time, people believed that diamonds could only be created under high pressure and high temperature conditions, imitating the formation of natural diamonds. This is called HPHT(high pressure and high temperature) method.

However, in the late 1980s, scientists discovered how to use a method called chemical vapor deposition (CVD) to create diamonds. Diamonds produced by CVD are produced by mixing hydrocarbons, usually methane, with hydrogen in a low-pressure vacuum chamber. The diamond will grow in a few days until it reaches the size required for the specific application. Normally, when methane and hydrogen are mixed, carbon is produced in a non-diamond form, such as graphite. In the CVD chamber, microwave energy, electric discharge, or hot cathode is used to generate hydrogen atoms, which react with non-diamond carbon to form vapor. Highly active hydrocarbon vapors will further react with hydrogen atoms, resulting in the separation of hydrogen and pure carbon, and pure carbon is deposited as diamonds. With the repetition of this process, the diamond can grow into different sizes according to the required application.

 

Parameters of Man Made Melee Diamonds

Lab Grown Melee Diamonds Details
Brand NameYuda Crystal
NameLab Grown Melee Diamonds
Diamond ColorDEF
Diamond ClarityVS-SI
Diamond Carat Weight0.080-0.015 carat
Diamond CutExcellent, Very Good,Good
PolishExcellent, Very Good,Good
SymmetryExcellent, Very Good,Good
TechnologyHPHT
Size1.2mm - 1.4mm
ShapeRound
Diamond EnhancementNone
Available TypeHPHT, CVD
Diamond CertificateNone
ApplicationJewelry Decorations Rings Earring Necklace
Place Of OriginZhengzhou, China
Delivery Time1 - 7 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)

 

Man Made Melee 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
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$$$$$$$$

 

Man Made Melee Diamonds Details

 

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