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Round HPHT Lab Grown Diamonds 2ct 3ct 4ct DEF Color VVS VS SI Purity

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: 2-4 Carat
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
Shape: Round Cut: Uncut
High Light:

HPHT Lab Grown Diamonds 2ct


HPHT Lab Grown Diamonds 3ct


4ct hpht rough diamond

Product Description

Round HPHT Lab Grown Diamonds 2ct 3ct 4ct DEF Color VVS VS SI Purity For Loose Diamonds


Lab Created Diamonds Description


Lab grown diamonds are also known as lab-made diamonds, synthetic diamonds and synthetic diamonds. There are two main ways to make lab-grown diamonds :CVD and HPHT.

Physical, chemical and optical properties of the same, so laboratory cultivation of diamond is true or false? Development of the diamond industry often use analogy to answer this question: laboratory cultivation of diamond and natural diamond like greenhouse flowers and natural flowers. They are both flowers, but they grow in different environments. Lab-grown diamonds and natural diamonds are like ice in the refrigerator and natural ice. They're both ice, but they formed in different environments.


Natural diamonds take millions of years to form. Before volcanic eruptions, subsurface lava Wells from about 150 to 200 kilometers deep can slowly cool down in the crater as the crater is often blocked. The pure carbon material pressure is 4.5 * 10 ^ 6 ~ 9 pa. When the temperature dropped to 1000 ~ 1250 ℃, the natural diamond crystal formation. Only a few places deep in the earth have the physical and chemical conditions to form diamonds.

However, in the production of natural diamond growing conditions in nature can now be simulated in the laboratory, the use of high temperature and high pressure (HPHT) or chemical vapor deposition (CVD) techniques, in just a few weeks can produce laboratory production of gem grade diamond.


Parameters Of Lab Created Diamonds


Product Name Synthetic (Lab created) diamond
Material Lab-grown
Color D-H
Shape Round
Technology HPHT
Diamond Cut Uncut
Payment Terms 100% Payment In Advance
Diamond Carat Weight 2CT-4CTS
Grade VVS-SI
Shipping way DHL, FedEx, SF Express, UPS, EMS, TNT etc
Payment Methods T/T, PayPal, Western Union, Bank Transfer
Used Jewelry (necklace,ring,earring)
Application For Cutting Lab Grown Loose Diamonds
Place Of Origin Zhengzhou, China


Characteristics Of Lab Created Diamonds


Lab grown diamonds in the chemical, optical and structure are the same as the mining of 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


1016 OHM-CM

1016 OHM-CM



8.3*10-13 M2/N

8.3*10-13 M2/N



From a scientific point of view, synthetic diamond and natural diamond exactly the same, the only difference is that the formation of their location.


Lab Created Diamonds Details


Round HPHT Lab Grown Diamonds 2ct 3ct 4ct DEF Color VVS VS SI Purity 0

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