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4-5 Carat DEF Color VS VVS1 VVS2 Purity Hpht Lab Made Diamond White For Jewelry

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

Detail Information

Product Name: Synthetic White HPHT Rough Diamonds Brand: Yuda Crystal
Grade: High Assortment: Good
Color: DEF Clarity: VVS VS
Carat Weight: 4-5carat Cut: Uncut
Technology: HPHT Shape: Round
Usage: For Cutting Lab Grown Polished 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:

VVS1 Hpht Lab Made Diamond


VVS2 Hpht Lab Made Diamond


5 Carat def color diamonds

Product Description

4-5 Carat DEF Color VS VVS1 VVS2 Purity Hpht Lab Made Diamond White Diamond For Jewelry


Description of Synthetic HPHT Diamonds


High temperature and pressure diamond how to grow artificial white HPHT rough diamond?


HPHT is short for High pressure-high Temperature treatment. Its purpose is to change or improve the natural body color of certain types of diamonds to make them more valuable. 


HPHT stands for high pressure and high temperature method, one of the main methods used in laboratories to make diamonds. The diamond growth process involves exposing carbon to extreme temperatures and pressures that mimic the extreme heat and pressure conditions in which natural diamonds form deep inside the Earth.


The diamond seed is placed under specially engineered pressure conditions. Heat the growth chamber to 1300-1600 °C at a pressure of more than 870,000 pounds per square inch. The molten metal breaks down high-purity carbon sources. Carbon atoms are deposited on a small diamond seed, and the synthetic diamond begins to grow. This lab-made crystal is then cut by a diamond cutter and grinder.


Parameters of Lab Made White Diamonds


Synthetic White HPHT Rough Diamonds Details
Brand Name Yuda Crystal
Name Synthetic White HPHT Rough Diamonds
Diamond Color D-E-F
Diamond Clarity VVS-VS
Diamond Carat Weight 4.0 - 5.0 carat
Diamond Cut Uncut
Technology HPHT
Size 5.0-15.0mm
Shape Raw
Application For Cutting Lab Grown Loose Diamonds
Place Of Origin Zhengzhou, China
Delivery Time 1 - 7 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)


Synthetic White HPHT Rough Diamonds Introduction


Natural diamonds are a gift from nature, while "cultured diamonds" in the laboratory are artificially created.

So how do you tell the difference between a diamond that hasn't been grown in a lab and a natural diamond?

There is no clear difference between a diamond that has not been grown in a laboratory and a natural diamond. Even professional gemologists need special equipment to identify them. By magnifying, professionals will be able to discern subtle differences in diamond inclusions that have been grown and mined in the lab.


The Difference Between Lab Diamonds And Natural Diamonds
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 $$$$$ $$$



Synthetic White HPHT Rough Diamonds Details


4-5 Carat DEF Color VS VVS1 VVS2 Purity Hpht Lab Made Diamond White For Jewelry 0

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