2.5-4.0 Ct DEF Color Raw Lab Created Rough Diamonds For Cutting Carat Loose Diamonds

Lab Created Rough Diamonds Description

Both natural diamond and cultivated diamond are pure carbon crystals, and their physical, chemical, crystal structure and optical properties are exactly the same.

How are diamonds made?

1. high pressure high temperature process (HPHT)

In the laboratory or factory to create high pressure and high temperature environment to produce diamonds, that is to imitate the formation conditions of natural diamonds in the depths of the earth. In the growth chamber, the carbon source decomposes in the molten metal, and the carbon atoms gather on a very small cultivated or natural diamond seed through the metal to form a unique cultivated diamond crystal.

2. chemical vapor deposition (CVD)

Diamonds are produced in a laboratory vacuum using carbon rich gases such as methane. The process of CVD is to decompose methane into carbon and hydrogen atoms, and then deposit them on diamond seeds to form square and flat diamond crystals.

How long does it take to make a diamond?

It usually takes weeks to make diamonds in the laboratory. Compared with the millions or even billions of years of natural diamond formation in the depths of the earth, this time can be said to be very short.

It is worth mentioning that, like natural diamonds, cultivated diamonds can be artificially treated to change color, or to improve their positive appearance and clarity.

Due to the different formation conditions, the nature of natural diamonds and cultivated diamonds are also different. However, natural diamonds grow into octahedral crystals (eight equilateral triangular facets), while cultivated diamonds can grow into both octahedral and cubic crystals (six square facets).

Parameters of Lab Created Rough Diamonds

Lab Created Rough 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.

Lab Created Rough Diamonds Details