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4Ct 5Ct HPHT Rough Diamond DEF Color Lab Produced Diamonds

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: HPHT Rough Lab Grown Diamond Brand: Yuda Crystal
Grade: High Assortment: Good
Color: DEF Clarity: VS
Carat Weight: 4.0-5.0ct 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:

5Ct HPHT Rough Diamond


HPHT DEF Lab Produced Diamonds


4Ct hpht rough diamond

Product Description

4.0 - 5.0 ct per carat price D E F Color VS Clairty HPHT Rough Lab Grown Diamond


HPHT Rough Lab Grown Diamond​ Description


Rough Lab Grown Diamond made in the laboratory, not mined from the earth. Rough Lab Grown Diamond are not fakes, they are not cubic zircons, they are not crystals. They are identical in chemical composition to natural diamonds.


Although scientists have been using this process since the middle of 1900, the diamonds originally made are pumpkin colored. It is only in recent years that scientists have found a way to produce the most familiar white diamond. There are two ways to make Rough Lab Grown Diamond. One is to use extreme high pressure and high temperature to imitate the natural diamond process and dissolve carbon into diamond seeds; Another method is similar to 3D printing, in which carbon is layered on the crystal seeds. Then, put the seeds in a peculiar diamond microwave oven, inject carbon gas into the microwave oven and stick it on the seeds to slow down the growth of the seeds.


Perhaps not surprisingly, Rough Lab Grown Diamond are controversial in the gem world. The cost of laboratory training is quite high. We bring the best quality laboratory grown diamonds through excellent cutting and polishing procedures. We believe that the diamond cultivated in the laboratory is also a lifetime diamond. Some people say that the plants in the laboratory can grow at any time in the laboratory, just like the earth. The diamonds mined have been mined for many years, and they are still mined every day and put on the market every day. We say that the diamonds mined by the earth will never stop mining, and the diamonds planted in the laboratory will never stop growing in the laboratory with the latest technology.


Parameters of HPHT Rough Lab Grown Diamond​


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 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 - 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)


HPHT Rough Lab Grown 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 $$$$$ $$$



HPHT Rough Lab Grown Diamond​ Details

4Ct 5Ct HPHT Rough Diamond DEF Color Lab Produced Diamonds 0


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