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DEF Color VVS VS Clarity 3-4 Carat HPHT Lab Grown Diamonds Jewelry Decoration

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: 2-2.5 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 Shape Cut: Uncut
High Light:

3 Carat HPHT Lab Grown Diamonds


4 Carat HPHT Lab Grown Diamonds


3 Carat hpht rough diamond

Product Description

DEF Color VVS VS Clarity 3-4 Carat Synthetic DiamondS For Jewelry Decoration


Lab Created Diamonds Description


Synthetic diamond is a kind of polycrystalline diamond which is polymerized from diamond crystals 10 to 30 nanometers in diameter. Synthetic diamond molecular structure is not completely octahedral structure of natural diamond but a complex structure, which can produce phosphorescence.

Synthetic diamond, as the name suggests, grow diamonds in a lab. Through the use of natural or synthetic diamond as a seed crystal, Synthetic diamond layer in the simulation of natural diamond growth environment of the laboratory environment to grow. Natural diamond and synthetic diamond are pure carbon crystal, crystal structure, physical properties, chemical properties and optical properties of the two identical.

The physical, chemical and optical properties are all the same, so are lab-grown diamonds real or fake? Development of the diamond industry often use analogy to answer this question: laboratory breeding of diamond and natural diamond like greenhouse flowers and natural flowers. They are both flowers, but they grow in different environments. Synthetic diamond and natural diamonds are like ice in a refrigerator and ice in nature. They're both ice, but they formed in different environments.

Natural diamonds take millions of years to form. Before the eruption, due to the crater is often blocked, from about 150 to 200 kilometers deep in the earth's crust molten Wells can be slowly cooled down in the crater of the volcano. At this time, the pressure of pure carbon material is 4.5 ~ 6*10^9Pa. When the temperature drops to 1000 ~ 1250℃, the crystal forms natural diamond. Deep inside the earth only a few places have the physical and chemical conditions of forming the diamond.

But, can now be simulated in the lab of natural diamond growing conditions, using HPHT (high temperature and high pressure) or CVD (chemical vapor deposition) technique in a few short weeks endogenous output laboratory cultivation of gem grade diamond.

Parameters Of Lab Created Diamonds


Product Name Synthetic (Lab created) diamond
Material Lab-grown
Color D-H
Size 0.003CT-5CTS
Grade VVS-SI
Used Jewelry (necklace,ring,earring)
Application For Cutting Lab Grown Loose Diamonds
Place Of Origin Zhengzhou, China


Characteristics Of Lab Created Diamonds


Synthetic diamond 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


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, where the only difference is that they are formed.


Lab Created Diamonds Details


DEF Color VVS VS Clarity 3-4 Carat HPHT Lab Grown Diamonds Jewelry Decoration 0

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