Rough Lab Grown Diamonds D E Color Vvs Vs Clarity - China

Product Description 3mm 4mm 5mm D E Color VVS VS Clarity Rough Lab Grown Diamonds For Making Small Size Lab Diamonds Rough Lab Grown Diamonds Description The lab grown diamonds are also real diamonds.

They have the same chemical composition and crystal structure as natural diamonds.

However, the manufacturing process of laboratory-grown diamonds uses advanced technology to simulate the formation conditions of natural diamonds under the earth's crust.

This formation process is the main factor that distinguishes lab diamonds from natural diamonds.

After all, in terms of chemical, optical and physical properties and crystal structure, lab grown diamonds are basically the same as natural diamonds.

Although the place and conditions of formation are different, the essence is the same.

So how are cultivated diamonds made? Two methods are mainly used now.

One is the high-pressure high-temperature method (HPHT), which creates high-pressure and high-temperature environments in laboratories or factories to produce diamonds, which is to imitate the formation conditions of natural diamonds in the depths of the earth.

In the growth chamber, the carbon source is decomposed in the molten metal, and the carbon atoms are gathered on a small cultivated or natural diamond seed through the metal to form a cultivated diamond crystal with a unique shape.

The second is chemical vapor deposition (CVD), which uses carbon-rich gas (such as methane) in the vacuum chamber of the laboratory to produce cultivated diamonds.

The production process of the CVD process is to first decompose the methane gas molecules into carbon and hydrogen atoms, and then deposit them on the diamond seed crystals to form square flat cultivated diamond crystals.

It usually takes several weeks to manufacture cultivated diamonds in the laboratory.

Compared to the millions or even billions of years of formation of natural diamonds deep in the earth, this time is very short.

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 VVS-SI

Diamond Carat Weight 0.2 - 0.6 carat

Diamond Cut Uncut

Technology HPHT

Size 3.0-5.0mm

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 3mm 4mm 5mm Rough Lab Grown Diamonds D E Color VVS VS Clarity 0

Company Contact:

• Posted By: Henan Yuda Crystal Co.,Ltd

• Phone: 86-371-53395413

• Address: ROOM 1524, 15TH FLOOR, NO.56 ZIJINGSHAN ROAD, GUANCHENG DISTRICT, ZHENGZHOU, HENAN, CHINA, ZHENGZHOU , HENAN , China

• Email:

• Website: https://www.labs-diamond.com

• Business Description: Yuda Crystal is one of the world's leading lab grown diamond companies, mainly active in fields: Gem quality lab grown rough(Including HPHT and CVD) diamonds manufacturing and wholesale, lab grown polish diamonds manufacturing and wholesale, Industrial grade HPHT and CVD lab grown diamonds manufacturing and wholesale.
  
  We are a key player in the lab grown diamond business with regular clients.
  
  Our reputation in the lab grown diamonds market is based on both stable quality and quantity.
  
  We are able to provide our clients with consistent supplies, offering them a full range of product categories in terms of size, quality and quantity.
  
  Our priority at all times is to deploy our considerable resources to deliver consistently towards the success and growth of our clients businesses.