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DEF VVS VS SI Rough Lab Grown Diamonds 0.4ct 20ct Human Made Diamonds

Categories Rough Lab Grown Diamonds
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: Rough Lab Grown Diamonds
Brand: Yuda Crystal
Grade: High
Assortment: Good
Color: DEF
Clarity: VVS VS SI
Carat Weight: 0.4ct - 20ct
Cut: Uncut
Technology: HPHT
Shape: Rough, Raw
Usage: For Cutting Lab Grown Polished 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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DEF VVS VS SI Rough Lab Grown Diamonds 0.4ct 20ct Human Made Diamonds

DEF VVS VS SI Rough Lab Grown Diamonds Made By HPHT Diamond Machine


Rough Lab Grown Diamonds Description


What is a laboratory rough diamond?

First of all, let's talk about diamonds. From a physical point of view, diamond is a carbon elemental crystal (crystal, which has a fixed shape and melting point), and its composition is the same as that of coal and graphite. However, although the coal and graphite we see in our lives are all black, diamonds are not black at all. They are transparent. This is because diamond, as a crystal, has a special energy band structure for the electrons inside. This structure determines that it will not absorb the energy of visible light, so visible light can pass through the entire diamond, making the diamond appear transparent.
Natural diamonds generally come to the surface of the earth during a volcanic eruption. At first, they were formed under the high temperature and high pressure environment deep in the earth, and then they were brought to the surface of the earth by magma. Most diamonds are formed almost as old as the age of the earth.

Lab-grown diamonds have been used in industry for more than 50 years, but in the past ten years, their quality and price have improved significantly, which means that these lab-grown diamonds can now be used in jewelry. Changing the "recipe" in the laboratory also means that the diamonds grown in these laboratories can also have different colors, including beautiful blues and pinks.

What are the advantages of developing diamonds in the laboratory?

Lab-grown diamonds can shine like natural diamonds.
Lab-grown diamonds can be mass-produced within a few weeks. As a result, laboratory-grown diamonds are much cheaper than natural diamonds of the same size and quantity.
In addition to colorless gems, laboratory-grown diamonds also provide a range of rare and expensive colors in their natural form.


Parameters of Rough Lab Grown Diamonds


Rough Lab Grown Diamonds Details
Brand NameYuda Crystal
NameRough Lab Grown Diamonds
Diamond ColorD-F
Diamond ClarityVS-SI
Diamond Carat Weight0.40ct upto 20ct per pcs
Diamond CutUncut
TechnologyHPHT
Size4.0-20.0mm
ShapeRaw
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)

Rough 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$$$$$$$$

Rough Lab Grown Diamonds Details


Quality DEF VVS VS SI Rough Lab Grown Diamonds 0.4ct 20ct Human Made Diamonds for sale
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