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HPHT Lab Grown Diamonds DEF Color VVS VS SI Clarity White 1ct-1.5ct

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 SI Carat Weight: 1-1.5ct
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

Product Description

HPHT Lab Grown Diamonds DEF Color VVS VS SI Clarity White 1ct-1.5ct

 

Lab Created Diamonds Description

 

While natural diamonds take tens to hundreds of millions of years to form deep in the Earth, lab grown diamonds made in a lab can take as little as a few weeks. At present, there are two main ways to make lab grown diamonds.
One is high pressure and high temperature. During diamond cultivation, the pure toner is compressed into a growth capsule, which is then placed in a culture chamber, day after day, at a pressure of 5-6 gpa and extremely high temperatures (up to 1,300-1,600 °C). Eventually the carbon atoms join together to form a diamond crystal. Many rough diamonds with large grains of more than 10 carats can be produced in one go in less than two weeks.

The other is chemical vapor deposition. Breeding process of chemical vapor deposition method is a diamond chip to be placed in a vacuum box, and then in the chamber filled with a mixture of hydrogen and methane gas, the gas provides a carbon atom, under the pressure of certain heating, until the gasification of carbon atoms on the thin layers and layers of sedimentary, like rain, forming uniform diamond coating. It takes nearly a month to grow a cut 1-carat CVD diamond crystal.
Both natural diamonds and lab grown diamonds are pure carbon crystals, which are identical in physical properties, chemical properties, crystal structure and optical properties. However, due to the different formation conditions, the nature of natural diamonds and lab grown diamonds are also different. The formation temperatures of natural diamond crystals are similar to those of lab-grown diamonds. However, natural diamonds grow into octahedral (eight equilateral triangular faces) crystals, while lab-grown diamond crystals can contain both octahedral and cubic (six square faces) crystals (HPHT) and plate-like crystals (CVD).

 

Parameters Of Lab Created Diamonds

 

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

 

Characteristics Of Lab Created Diamonds

 

Lab-grown diamonds are chemically, optically and structurally identical to mined diamonds. What does that mean?

 

The Difference Between Lab Diamond And Natural Diamond
Attribute Lab Created 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

Resistivity

1016 OHM-CM

1016 OHM-CM

No

Compressibility

8.3*10-13 M2/N

8.3*10-13 M2/N

No

 

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

 

Lab Created Diamonds Details

 

HPHT Lab Grown Diamonds DEF Color VVS VS SI Clarity White 1ct-1.5ct 0

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