20 Carat Colorless HPHT Synthetic Diamond

Product Details:
Place of Origin: Zhengzhou, China
Certification: None
Model Number: YD-A+
Payment & Shipping Terms:
Minimum Order Quantity: Negotiate
Price: Negotiate
Packaging Details: Carton box
Delivery Time: 1-7 working days
Payment Terms: T/T, Western Union
Supply Ability: 50000carats per month

Detail Information

Product Name: HPHT Synthetic Diamond Brand: Yuda Crystal
Grade: High Assortment: Good
Color: DEF Clarity: VVS
Carat Weight: 0.4-20.0ct 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: 1-7 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:

Yuda Crystal HPHT Synthetic Diamond


0.5 Carat Colorless Synthetic Diamond


20 Carat HPHT Synthetic Diamond

Product Description

Yuda Crystal 0.5 carat to 20 carat White Colorless Super VVS Quality Rough Lab Grown HPHT Synthetic Diamond


Rough Lab Grown HPHT Synthetic Diamond Description


Lab grown diamonds are made in the laboratory. There are two main methods to make Rough Lab Grown HPHT Synthetic Diamond: one is high pressure and high temperature method (HPHT), the other is chemical vapor deposition method (CVD).


HPHT(High Pressure and High Temperature) method is the primary method used to grow lab grown rough diamonds. Currently the world's popular HPHT synthetic diamond making equipment mainly includes two side top, six side top and bar split sphere or improved split sphere.

Since diamonds can be created by equipment, will people be cheated by using the price of natural diamonds to buy lab diamonds?


With professional equipment, the comparison of the color, crystal shape and crystal surface characteristics, internal inclusion characteristics, absorption spectrum and ultraviolet fluorescence characteristics of the tested diamonds can completely distinguish the lab grown diamonds from the natural diamonds. After all, natural diamonds were formed billions of years ago, while lab grown diamonds can only be formed in a few days. There is no difference between the two, and it can be completely distinguished by professional testing tools.



Parameters of Lab Grown HPHT Rough Diamonds


HPHT Lab Grown Diamonds Details
Brand Name Yuda Crystal
Name Rough Lab Grown Diamonds
Diamond Color D-F
Diamond Clarity VVS-SI
Diamond Carat Weight 0.40-20.00 carat
Diamond Cut Uncut
Technology HPHT
Size 5.0-20.0mm
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)


Rough Lab Grown HPHT Synthetic Diamond Introduction


​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
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 $$$$$ $$$



Rough Lab Grown HPHT Synthetic Diamond Details

20 Carat Colorless HPHT Synthetic Diamond 0

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