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VVS VS Clarity Rough HPHT Lab Grown Diamonds White DEF Color 4-5ct

Minimum Order Quantity : Negotiate Price : Negotiate
Packaging Details : Carton box Delivery Time : 1-7 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: RBC

Detail Information

Product Name :: HPHT Lab Grown Diamonds Color: DEF
Clarity: VVS VS Carat Weight: 1-8ct
Technology: HPHT Usage: For Cutting Lab Grown Diamonds
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 Hardness: Moh's 10 Scale
High Light:

VVS Rough HPHT Lab Grown Diamonds


White DEF HPHT Lab Grown Diamonds


5ct HPHT Rough Uncut Diamond

Product Description

DEF Color VVS VS Clarity Rough 4-5ct White HPHT Lab Grown Diamonds


Lab Grown Diamonds Description


Lab grown diamond is a small diamond as the seed, by simulating the growth of natural diamonds to grow. It has the same physical, chemical and optical properties as natural diamond, and the hardness is 10. There is no such thing as genuine or fake diamonds. As long as there is reasonable public disclosure of the sale of lab grown diamonds, lan grown diamonds are a segment that can reasonably exist in the market. At present the international academic circle all affirms it is to have the diamond that wears value. Therefore, both international and domestic authorities can issue grading certificates for cultivating diamonds, such as IGI, GIA, HRD, NGTC, etc.


Parameters Of Lab Grown Diamonds


Product Name Synthetic (Lab grown) diamond
Material Lab-grown
Color D-H
Size 0.003PCS/CT-7CTS/PC
Used Jewelry (necklace,ring)
Application For Cutting Lab Grown Loose Diamonds
Place Of Origin Zhengzhou, China


Characteristics Of Lab Grown Diamonds


The Difference Between Lab Diamond And Natural Diamond
Attribute Lab Grown Diamonds Natural diamond Distinction
Chemical composition C(carbon) C(carbon) No
Refractive index 2.42 2.42 No
Relative density 3.52 3.52 No
Dispersion 0.044 0.044 No
Hardness value 90 GPA 90 GPA No
Thermal conductivity 2*103 W/M/K 2*103 W/M/K No
Thermal property 0.8*10-6 K 0.8*10-6 K No
Light transmittance DEEP UV TO FAR TR DEEP UV TO FAR TR No


1016 OHM-CM

1016 OHM-CM



8.3*10-13 M2/N

8.3*10-13 M2/N



From a scientific point of view, cultivated diamonds are exactly the same as natural diamonds, the only difference being where they are formed.


1. Inclusions
These inclusions are round, rod-like, plate-like and needle-like, and their arrangement is related to the boundary of internal growth zone. Inclusions can also be dispersed throughout the crystal as particles. These inclusions are opaque and appear golden or black in reflected light with a metallic luster.


2. Color
The vast majority of synthetic diamonds are yellow, thirsty yellow (most) with an hourglass ribbon; And natural diamond is colorless, light yellow and other color. At present, the better quality CVD diamond industry can achieve colorless or light brown color, almost unrecognizable to the naked eye.


3. Abnormal birefringence
Under orthogonal polarization, natural diamonds show complex abnormal birefringence characteristics due to the complexity of growth and migration process, such as irregular banded, wavy, patch and lattice, etc., while synthetic diamonds show weak abnormal birefringence, and some synthetic diamonds show bright cross bands.


Lab Grown Diamonds Details


VVS VS Clarity Rough HPHT Lab Grown Diamonds White DEF Color 4-5ct 0

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