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5.0 Carat 5.5 Carat 6.0 Carat HPHT Diamond Rough VS1 VS2 SI1 SI2 DEF Color

Categories HPHT Rough Diamond
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 Synthetic Diamond
Brand: Yuda Crystal
Grade: High
Assortment: Good
Color: DEF
Clarity: VS SI
Carat Weight: 5-6ct
Cut: Uncut
Technology: HPHT
Shape: Rough, Raw
Usage: For Cutting Lab Grown 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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5.0 Carat 5.5 Carat 6.0 Carat HPHT Diamond Rough VS1 VS2 SI1 SI2 DEF Color

VS1 VS2 SI1 SI2 Clarity DEF Color 5.0 Carat To 6.0 Carat Hpht Diamonds Rough For 2carat 2.5carat 3carat Lab Diamond Ring


Lab Grown Rough Diamonds Description


The best diamond made in the laboratory is type IIA, which is the purest diamond at present. In fact, only 2% of natural diamonds on earth are so pure. On the other hand, diamonds made in the laboratory are made in a highly controlled and monitored, pollution-free environment, so quality assurance is built-in. Although all the diamonds planted in the laboratory are great, just like the diamonds mined with clay, no two are the same. There are differences in reflection, clarity and refraction of light, which make the stone "shine", so the key is to find a stone that can speak to you.
The best laboratory diamonds are cut, polished and graded in the laboratory, and the laboratory has proven the diamonds mined. Transparency should be the same as or better than the ground diamonds mined, usually in the range of if to SI2. In addition to reading the diamond certification, you also want to examine the stone carefully and consider determining the quality of the 4 C: color, cut, clarity and carat weight. The cutting and definition of stone affect the brightness and luster of diamond by changing the way that diamond refracts light. The quality of diamond color is usually subjective. Because the saturation of hue can be controlled, there may be many kinds of stone colors. The carat weight of a diamond directly reflects its value, because it is an expression of rarity. The diamond planted in the laboratory is heavy and not as rare as the native diamond, but the carat weight can be used to refer to the size of the stone, and its price is natural.


Parameters of Lab Grown Rough Diamonds


HPHT Lab Grown Diamonds Details
Brand NameYuda Crystal
NameRough Lab Grown Diamonds
Diamond ColorD-F
Diamond ClarityVS-SI
Diamond Carat Weight5.0-6.0 carat
Diamond CutUncut
TechnologyHPHT
Size5.0-15.0mm
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)

Lab Grown Rough Diamonds Introduction


HPHT is the abbreviation for high temperature and high pressure treatment, and its purpose is to change or improve the natural body color of certain types of diamonds to make them more valuable.


In the past, it was called Pegasus diamond and GE POL diamond. The reason why it is called GE Diamond is because The technology developed by GE in the United States is a new product exclusively sold by POL, a subsidiary of Israel's LKI, in 1999.


HPHT technology is to process natural diamonds at high temperature and high pressure to enhance the color grade of diamonds. In one move, it can be upgraded to 4-6 levels. However, not every diamond can be processed by this technology. It must have a J color or higher, and be free of impurities and high-clarity quality. During processing, the results cannot be predicted. In other words, it is not certain what level it can be promoted to.


At the same time, diamonds treated with HPHT may deepen or change in color to become a colored diamond.


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$$$$$$$$

Lab Grown Rough Diamonds Details


Quality 5.0 Carat 5.5 Carat 6.0 Carat HPHT Diamond Rough VS1 VS2 SI1 SI2 DEF Color for sale
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