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1 Carat Laboratory Grown HPHT Rough Diamond White 0.5ct Polish Lab Diamonds

Minimum Order Quantity : Negotiate Price : Negotiate
Packaging Details : Carton box Delivery Time : 3-7 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: Laboratory-Grown Rough HPHT Diamond Brand: Yuda Crystal
Grade: High Assortment: Good
Color: DEF Clarity: VVS VS SI
Carat Weight: 1.00-1.50ct Cut: Uncut
Technology: HPHT Shape: Rough, Raw
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:

Laboratory Grown HPHT Rough Diamond


1 Carat HPHT Rough Diamond


White 0.5ct Polish Lab Diamonds

Product Description

1 Carat Laboratory-Grown Rough HPHT Diamond With Full White Color For Making 0.5ct Polish Lab Diamonds


Laboratory-Grown Rough HPHT Diamond Description


The laboratory-grown rough diamond are grown in the laboratory. They are composed of carbon atoms, have the same physical properties and chemical composition as natural diamonds, and have fewer impurities and higher purity than natural diamonds. And it's cheaper.

There are two techniques for growing diamond in the laboratory, one is the high temperature and high pressure method. This method is the most widely used. The other is chemical vapor deposition method. This method can obtain high-purity diamond without a catalyst.

What is the essential difference between natural diamonds and cultivated diamonds, mainly in the following points:

1. Formation time

Natural diamonds are formed under high temperature and high pressure due to geological reasons, and it takes tens of thousands or even tens of millions of years to produce. Cultivated diamonds are cultivated by scientists by simulating the growth environment of natural diamonds, under the same high temperature and high pressure conditions, through very sophisticated instruments, in about one to three weeks.

2. Crystal shape

Due to the different formation conditions, the properties of natural diamonds and cultivated diamonds are also different. The formation temperature of natural diamond crystals and laboratory-grown diamonds is almost the same, but natural diamonds will grow into octahedral crystals, while cultivated diamond crystals can grow into crystals that contain both octahedrons and cubes.

3. Color

The vast majority of synthetic diamonds are yellow, brown and yellow with hourglass bands; while natural diamonds are colorless, light yellow and other colors. At present, gem quality lab diamonds can also achieve colorless, which is almost unrecognizable to the naked eye.


Parameters of Laboratory-Grown Rough HPHT Diamond

Laboratory-Grown Rough HPHT Diamond Details

Brand Name Yuda Crystal
Name Laboratory-Grown Rough HPHT Diamond
Diamond Color D, E, F
Diamond Clarity VVS-VS-SI
Diamond Carat Weight 1.0 - 1.5 carat
Diamond Cut Uncut
Technology HPHT
Size 5.0-7.0mm
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)


Laboratory-Grown Rough HPHT Diamond 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 $$$$$ $$$



Laboratory-Grown Rough HPHT Diamond Details


1 Carat Laboratory Grown HPHT Rough Diamond White 0.5ct Polish Lab Diamonds 0

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