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DEF Color VS 13ct 13.5ct 14Ct HPHT Rough Diamonds

Categories CVD Rough 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: HPHT Lab Grown Diamonds
Brand: Yuda Crystal
Grade: High
Assortment: Good
Color: DEF
Clarity: VS
Carat Weight: 13-14ct
Cut: Uncut
Technology: HPHT
Shape: Rough, Raw
Usage: For Cutting HPHT Diamonds
Component: Carbon
Hardness: Moh's 10 Scale
Available Type: HPHT
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 Color VS 13ct 13.5ct 14Ct HPHT Rough Diamonds

Square Shape DEF Color VS Purity 13.0 - 14.0 Carat HPHT Rough Diamonds For 4carat DEF Color Lab Diamonds


HPHT Rough Diamonds Description


Lab created diamonds, as the name suggests, are diamonds made in a laboratory.
Many people may think that because they are grown in a laboratory, they are all fake diamonds. In fact, grow diamonds just uses advanced technology to simulate the environment in which diamonds are formed in the earth's crust, and then accumulate carbon atoms layer by layer to form lab grown rough stones. The lab created rough diamonds is no different from the natural diamond from the underground. Actually its physical and chemical properties are the same, and its molecular structure is the same, so there is no reason to suspect that it is a fake diamond, because no one can distinguish it with the naked eye.
High temperature and high pressure technology originated in the 1950s, and was initially mainly used in the aviation and military industries. In the last ten years, the quality and cost of gem grade synthetic diamond have reached the market level.
High pressure high temperature (HPHT) diamonds are made by simulating the high-temperature and high-pressure conditions of natural diamonds formed on the earth in the laboratory. This process can produce a unique shape of laboratory-grown diamond crystals, namely cubic octahedrons.

Synthetic diamond requires a carbon source, a high pressure of about 50 to 80 KB, and a high temperature of about 1350 degrees Celsius to 1800 degrees Celsius. In addition, a metal catalyst is also required. The carbon source is melted in the metal catalyst around it until it reaches the saturation point, after which they crystallize to form synthetic diamonds.


Parameters of HPHT Rough Diamonds

HPHT Rough Diamonds Details
Brand NameYuda Crystal
NameHPHT Rough Diamonds
Diamond ColorDEF
Diamond ClarityVS
Diamond Carat Weight13.0-14.0carat
Diamond CutUncut
TechnologyHPHT
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)

HPHT Rough 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$$$$$$$$

HPHT Rough Diamonds Details


Cheap DEF Color VS 13ct 13.5ct 14Ct HPHT Rough Diamonds for sale
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