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1 Carat 1.5 Carat HPHT Rough Lab Grown Diamonds Yuda Crystal For Bracelet

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: Rough Lab Grown Diamonds Brand: Yuda Crystal
Grade: A Assortment: Good
Color: DEF Clarity: VVS VS SI
Carat Weight: 1.0-1.5ct 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:

1 Carat Rough Lab Grown Diamonds


Rough Lab Grown Diamonds 1.5ct


HPHT 1.5 carat lab grown diamond

Product Description

1 Carat DEF Color HPHT Rough Lab Grown Diamonds For Making Lab Grown Polish Diamonds


Rough Lab Grown Diamonds Description


Laboratory-grown diamonds have many different names: lab diamonds, lab-made diamonds, man made diamonds, and even synthetic diamonds. These names indicate that cultivated diamonds are artificially created in laboratories or factories, rather than naturally formed or mined from the ground. To create lab grown diamonds, scientists use advanced technology to simulate the formation conditions of natural diamonds under the earth's crust. This formation process is the main factor that distinguishes lab diamonds from natural diamonds. 

Since the physical and chemical properties of laboratory-grown diamonds and natural diamonds are exactly the same as those of natural diamonds, can people distinguish between the two?
The answer is yes. In fact, in terms of shape, rough lab grown diamonds and natural diamonds usually have different shapes. Due to different formation conditions, natural diamonds usually are octahedral crystals, that is, eight equilateral triangular crystal faces, while lab grown rough diamonds usually grow into crystals that contain both octahedrons and cubes, that is, six square crystal faces. Therefore, it can be easily distinguished from the appearance. Gem-quality laboratory-grown diamonds are usually manufactured by two technologies, HPHT and CVD. Due to different technical principles, the shapes of diamonds grown in HPHT and CVD laboratories are also different. The shape of HPHT diamond is usually a combination of cube and octahedral surface, while the shape of CVD diamond has no octahedral surface at all. The cubic crystal face grows faster than the octahedral crystal face.

However, it is difficult to distinguish between polished laboratory-grown diamonds and natural diamonds with the naked eye. Professionals can rely on professional testing equipment to distinguish them.

Parameters of Rough Lab Grown Diamonds

Rough Lab Grown Diamonds Details
Brand Name Yuda Crystal
Name Rough Lab Grown Diamonds
Diamond Color D-F
Diamond Clarity VVS-SI
Diamond Carat Weight 0.80-1.50 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 - 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 Diamonds Introduction


Rough Lab Grown Diamond is a polycrystalline diamond made of diamond crystals with a diameter of 10 to 30 nanometers. In the early stage, man-made diamonds showed a light color of sugar due to the nitrogen atoms in the air entering into the diamond crystal. Through the improved production method of scientists, there is no difference between man-made diamonds and natural diamonds in appearance now.


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 Diamonds Details


1 Carat 1.5 Carat HPHT Rough Lab Grown Diamonds Yuda Crystal For Bracelet 0

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