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4ct 5ct 6ct DEF Color VVS VS SI Clarity HPHT Synthetic Diamond For Loose Diamond

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 Diamond Diamond Colour: DEF
Diamond Clarity: VVS VS SI Diamond Carat Weight: 4-6ct
Technology: HPHT Application: Ring, Necklace, Earring
Payment Terms: 100% Payment In Advance Payment Mode: T/T, Bank Transfer, Western Union,PayPal
Delivery Time: 1-7 Working Days Depends On Quantity Courier: UPS,DHL,FedEx, TNT, EMS Etc
Packaging: As Export Standard Hardness: Moh's 10 Scale
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4ct HPHT Synthetic Diamond


5ct HPHT Synthetic Diamond


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Product Description

4Ct 5Ct 6Ct HPHT VVS VS SI Clarity DEF Colour Synthetic Diamonds For Sale


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 the growth of diamond manufacturing laboratory: CVD and HPHT.

Artificial diamond simulates the growth of natural diamond in the laboratory environment through modern technology, and has the characteristics of natural diamond, is the real diamond. The history of laboratory synthetic diamonds dates back to the 1950s. There are two main manufacture diamond production and laboratory methods: high temperature and high pressure (HPHT) and chemical vapour deposition (CVD). This formation process is the main factor that distinguishes lab-made diamonds from mined ones. Lab-grown diamonds can be mass-produced in a matter of weeks.Compared with natural diamond, laboratory synthetic diamonds in quality (provide bigger and more beautiful diamond), cost (only a third of the natural diamond prices), environmental protection (laboratory synthetic diamonds, save water, reduce the loss of the terrestrial carbon emissions) have obvious advantages, etc. At present, diamonds produced by the laboratory have obtained IGI, GIA and NGTC national testing certificates.

The so-called "lab created diamonds", also say laboratory breed diamond, also say grow diamond in national standard, say man-made diamond. Laboratory of diamond products in crystal structure integrity, transparency, refractive index and dispersion can be equivalent to that of natural diamond. As the emerging field of diamond consumption choices, laboratory breeding of diamond products can be used to make diamond ring, necklace, earrings and other diamond jewelry and other fashion goods.


Parameters Of Lab Created Diamonds


Product Name Synthetic (Lab created) diamond
Material Lab-grown
Diamond Color DEF
Diamond Size 4TC-6CTS/PCS
Diamond Purity VVS VS SI
Diamond Technology HPHT
Diamond Cut Uncut
Payment Terms 100% Payment In Advance
Delivery Time 1 - 7 Working Days Base on Order Quantity
Shipping way DHL, FedEx, SF Express, UPS, EMS, TNT etc
Shape Raw
Used Jewelry (necklace,ring)
Application For Cutting Lab Grown Loose Diamonds
Place Of Origin Zhengzhou, China


The Difference Between Lab Diamonds And Natural Diamonds


Lab-grown diamonds are chemically, optical and structure are the same as the mining of diamonds. What is the meaning of this?

Natural diamonds are created by nature, the result of billions of years of high temperature and pressure. Laboratory of rough diamond is produced in the laboratory, usually need a couple of weeks. Both on the chemistry of the difference is the same.

There is no discernible difference between rough lab-produced diamonds and natural diamonds. Even professional gemologists also need special equipment to identify them. By magnifying, professionals will be able to recognize in the lab, growth and production of diamond inclusions nuances.

From a scientific point of view, synthetic diamond and natural diamond exactly the same, the only difference is that the formation of their position. Laboratory cultivation of natural diamonds has exactly the same physical, chemical and optical properties, hardness of 10.

In fact, in terms of shape, lab-made diamonds and natural diamonds usually take on different shapes. Due to different formation conditions, natural diamonds are usually octahedral crystals, that is, eight equilateral triangular crystal faces, while cultivated diamonds are usually grown into crystals containing both octahedron and cube, that is, six square crystal faces. Therefore, it is easy to distinguish from the exterior.


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



Lab Created Diamonds Details

4ct 5ct 6ct DEF Color VVS VS SI Clarity HPHT Synthetic Diamond For Loose Diamond 0

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