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1.5ct 2.0ct Certified Lab Grown Diamonds Round Brilliant Cut

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1.5ct 2.0ct Certified Lab Grown Diamonds Round Brilliant Cut

Country/Region china
City & Province zhengzhou henan
Categories Steel Wire
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Product Details

1.5ct 2.0ct Round Brilliant Cut Certified Lab Grown Diamonds For Making Lab Diamond Rings

 

Certified Lab Grown Diamonds Description

 

Diamonds are made of pure carbon in the shape of a tetrahedron. 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.
HPHT is the primary method used to grow rough diamonds in a laboratory. At present, the world's popular high-temperature and high-pressure synthetic diamond equipment mainly includes two side top, six side top and bar split sphere or improved split sphere.
CVD (chemical vapor deposition) diamond is based on a natural bare diamond. With the assistance of high-purity methane, hydrogen, nitrogen and other gases, the carbon molecules in methane and diamond are continuously accumulated on the original diamond in a high-pressure way in a microwave oven. Every few days, the diamond is taken out, the top surface of the diamond is polished, and the non-diamond carbon elements are removed from it, and then returned to the growth chamber. Each batch of diamonds may need to go through several start/stop cycles, and the entire growth process takes three to four weeks. In order to make CVD diamond grow smoothly, methane with diamond structure is often used as carbon source. Methane can be regarded as a monatomic diamond pressed out by hydrogen. The quality of lab diamonds is almost the same as that of natural diamond, which is hard to distinguish with the naked eye.
For consumers, a professional diamond certificate can clearly show the detailed characteristics of the diamond. So that people can clearly know the quality of the diamonds they buy.

 

Parameters of Certified Lab Grown Diamonds

Certified Lab Grown Diamonds Details
Brand NameYuda Crystal
NameCertified Lab Grown Diamonds
Diamond ColorDEF,GHIJ
Diamond ClarityVVS-SI
Diamond Carat Weight1.5-2.0 carat
Diamond CutExcellent, Very Good,Good
PolishExcellent, Very Good,Good
SymmetryExcellent, Very Good,Good
TechnologyHPHT
Size1.5-2.0carat per pcs
ShapeRound
Diamond EnhancementNone
Available TypeHPHT, CVD
Diamond CertificateIGI
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)

 

Certified 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 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$$$$$$$$

 

Certified Lab Grown Diamonds Details

 

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