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DEF VVS VS SI Rough Lab Grown Diamonds 0.4ct 20ct Human Made Diamonds

Minimum Order Quantity : Negotiate Price : Negotiate
Packaging Details : Carton box Delivery Time : 1-15 working days
Payment Terms : T/T, Western Union Supply Ability : 50000carats per month
Place of Origin: Zhengzhou, China Brand Name: YUDA CRYSTAL
Certification: None Model Number: YD-A

Detail Information

Product Name: Rough Lab Grown Diamonds Brand: Yuda Crystal
Grade: High Assortment: Good
Color: DEF Clarity: VVS VS SI
Carat Weight: 0.4ct - 20ct Cut: Uncut
Technology: HPHT Shape: Rough, Raw
Usage: For Cutting Lab Grown Polished Diamonds Component: Carbon
Hardness: Moh's 10 Scale Available Type: HPHT, CVD
Place Of Origin: Zhengzhou, China Payment Terms: 100% Payment In Advance
Payment Mode: T/T, Bank Transfer, PayPal, Western Union Delivery Time: 1-15 Working Days Depends On Quantity
Courier: DHL, FedEx, UPS, TNT, EMS Etc Packaging: As Export Standard
Customization: Welcome Polish: None
Symmetry: None Sample Order: Welcome
Treatments Applied: None Enhancement: None
High Light:

Rough Lab Grown Diamonds 0.4ct


20ct Human Made Diamonds


DEF vvs simulated lab diamonds

Product Description

DEF VVS VS SI Rough Lab Grown Diamonds Made By HPHT Diamond Machine


Rough Lab Grown Diamonds Description


What is a laboratory rough diamond?

First of all, let's talk about diamonds. From a physical point of view, diamond is a carbon elemental crystal (crystal, which has a fixed shape and melting point), and its composition is the same as that of coal and graphite. However, although the coal and graphite we see in our lives are all black, diamonds are not black at all. They are transparent. This is because diamond, as a crystal, has a special energy band structure for the electrons inside. This structure determines that it will not absorb the energy of visible light, so visible light can pass through the entire diamond, making the diamond appear transparent.
Natural diamonds generally come to the surface of the earth during a volcanic eruption. At first, they were formed under the high temperature and high pressure environment deep in the earth, and then they were brought to the surface of the earth by magma. Most diamonds are formed almost as old as the age of the earth.

Lab-grown diamonds have been used in industry for more than 50 years, but in the past ten years, their quality and price have improved significantly, which means that these lab-grown diamonds can now be used in jewelry. Changing the "recipe" in the laboratory also means that the diamonds grown in these laboratories can also have different colors, including beautiful blues and pinks.

What are the advantages of developing diamonds in the laboratory?

Lab-grown diamonds can shine like natural diamonds.
Lab-grown diamonds can be mass-produced within a few weeks. As a result, laboratory-grown diamonds are much cheaper than natural diamonds of the same size and quantity.
In addition to colorless gems, laboratory-grown diamonds also provide a range of rare and expensive colors in their natural form.


Parameters of Rough Lab Grown Diamonds


Rough Lab Grown Diamonds Details
Brand Name Yuda Crystal
Name Rough Lab Grown Diamonds
Diamond Color D-F
Diamond Clarity VS-SI
Diamond Carat Weight 0.40ct upto 20ct per pcs
Diamond Cut Uncut
Technology HPHT
Size 4.0-20.0mm
Shape Raw
Application For Cutting Lab Grown Loose Diamonds
Place Of Origin Zhengzhou, China
Delivery Time 1 - 15 Working Days Base on Order Quantity
Payment Terms 100% Payment In Advance
Payment Methods T/T, PayPal, Western Union, Bank Transfer
Shipping way DHL, FedEx, SF Express, UPS, EMS, TNT etc
M.O.Q Negotiable
Diamond Type Synthetic(lab created)
Location Zhengzhou, China
Treatments Applied None
Fire Dispersion 0.044(Same as Natural Diamond)
Brilliance Refraction Index 2.42(Same as Natural Diamond)
Relative Density 3.52(Same as Natural Diamond)
Chemical Composition Carbon(Same as Natural Diamond)
Moh's Hardness 10(Same as Natural Diamond)


Rough Lab Grown Diamonds Introduction


Natural diamonds are created by nature and are the result of high temperature and pressure formed over billions of years. The Lab Grown Diamonds are produced in the laboratory, usually in a few weeks. The chemical difference between the two is same.

So how do you distinguish between Lab Grown Diamonds and natural diamonds?

There is no obvious difference between the Lab Grown Diamonds and natural diamonds. Even professional gemologists need special equipment to identify them. By zooming in, professionals will be able to discern subtle contrasts in diamond inclusions grown and mined in the laboratory.


The Difference Between Lab Diamond And Natural Diamond
Properties Earth Mined Lab Created
Guaranteed Conflict-Free No Yes
Hardness (MOHS) 10 10
SP3 Carbon Diamond Bonds (%) 100% 100%
Internal Crystal Structure Face-Centered Cubic Face-Centered Cubic
Hardness Comparable 2.42 2.42
Relative Diversity 3.52 3.52
Color Diffusion 0.044 0.044
Color Various Grades K to D grades
Price $$$$$ $$$



Rough Lab Grown Diamonds Details


DEF VVS VS SI Rough Lab Grown Diamonds 0.4ct 20ct Human Made Diamonds 0

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