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5mm To 8mm 1.5 Carat VS SI HPHT Rough Diamond 2 Carat White Diamond

Minimum Order Quantity : Negotiate Price : Negotiate
Packaging Details : Carton box Delivery Time : 1-15 working days
Payment Terms : T/T, Western Union, PayPal, Bank Transfer Supply Ability : 50000carats per month
Place of Origin: Zhengzhou, China Brand Name: YUDA CRYSTAL
Certification: None Model Number: YD-A+

Detail Information

Product Name: HPHT Synthetic Diamond Brand: Yuda Crystal
Grade: High Assortment: Good
Color: DEF Clarity: VS SI
Carat Weight: 1.5-2.0ct 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 Terms: 100% Payment In Advance
Payment Mode: T/T, Bank Transfer, PayPal, Western Union Delivery Time: 1-15 Working Days Depends On Quantity
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
High Light:

VS SI HPHT Rough Diamond


1.5 Carat HPHT Rough Diamond


8mm 2 carat white diamond

Product Description

1.5 Carat To 2.0 Carat White Shade VS SI Purity HPHT Rough Diamond For Making Def Color Lab Grown Loose Diamonds


Lab Grown Rough Diamonds Description


Diamond grown in laboratory is usually produced by chemical vapor deposition (CVD) or high pressure high temperature (HPHT).

High purity high temperature heat treatment (HPHT), which has been used since 1950s, places a pure solid carbon source under high pressure and high temperature. In the presence of catalyst, the carbon heated under pressure crystallizes into diamond. HPHT is sometimes used to improve the color of mined or laboratory grown diamonds.

Laboratory grown diamonds are man-made, like diamonds crystals.The The manufacturing process work replicates the pressure and temperature of the natural diamond production environment. By adding a catalyst to the carbon and placing the mixture in a high-voltage battery, the formation process is initiated by a forced chemical reaction. The mixture was then cooled and washed with acid to produce laboratory grown diamonds.

The quality of diamonds produced in the laboratory can range from lower than natural diamonds to higher than natural diamonds, depending on the technology and individual manufacturing processes.


Parameters of Lab Grown Rough Diamonds

HPHT Lab Grown Diamonds Details
Brand Name Yuda Crystal
Name Rough Lab Grown Diamonds
Diamond Color D-F
Diamond Clarity VS-SI
Diamond Carat Weight 1.5-2.0 carat
Diamond Cut Uncut
Technology HPHT
Size 5.0-8.0mm
Shape Raw
Application For Cutting Lab Grown Loose Diamonds
Place Of Origin Zhengzhou, China
Delivery Time 1 - 15 Working Days Base on Order Quantity
Payment Terms 100% Payment In Advance
Payment Methods T/T, PayPal, Western Union, Bank Transfer
Shipping way DHL, FedEx, SF Express, UPS, EMS, TNT etc
M.O.Q Negotiable
Diamond Type Synthetic(lab created)
Location Zhengzhou, China
Treatments Applied None
Fire Dispersion 0.044(Same as Natural Diamond)
Brilliance Refraction Index 2.42(Same as Natural Diamond)
Relative Density 3.52(Same as Natural Diamond)
Chemical Composition Carbon(Same as Natural Diamond)
Moh's Hardness 10(Same as Natural Diamond)


Lab Grown 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
Properties Earth Mined Lab Created
Guaranteed Conflict-Free No Yes
Hardness (MOHS) 10 10
SP3 Carbon Diamond Bonds (%) 100% 100%
Internal Crystal Structure Face-Centered Cubic Face-Centered Cubic
Hardness Comparable 2.42 2.42
Relative Diversity 3.52 3.52
Color Diffusion 0.044 0.044
Color Various Grades K to D grades
Price $$$$$ $$$


Lab Grown Rough Diamonds Details


5mm To 8mm 1.5 Carat VS SI HPHT Rough Diamond 2 Carat White Diamond 0

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