Rectangular Shape 5mm - 7mm DEF Color Rough CVD Diamond Price Per Carat

CVD Lab Grown Diamonds Description

The laboratory-grown diamonds are grown in the laboratory, they are composed of carbon atoms, have the same physical properties and chemical composition as natural diamonds, and have fewer impurities and higher purity than natural diamonds. And it's cheaper.

There are two techniques for growing diamond in the laboratory, one is the high temperature and high pressure method. This method is the most widely used, but this process will use a catalyst to mix the diamond with impurities, so most diamonds are used in industrial fields. The other is chemical vapor deposition. This method can obtain high-purity diamond without a catalyst.

What is the essential difference between natural diamonds and cultivated diamonds, mainly in the following points:

1. Formation time

Natural diamonds are formed under high temperature and high pressure due to geological reasons, and it takes tens of thousands or even tens of millions of years to produce. Cultivated diamonds are cultivated in about one to three weeks.

2. Crystal shape

The formation temperature of natural diamonds and laboratory-grown diamonds is almost the same, but natural diamonds will grow into octahedral crystals, while lab diamonds can grow into crystals that contain both octahedrons and cubes.

3. Color

Natural diamonds are colorless, light yellow and other colors. At present, better quality lab diamonds can also achieve colorless or light brown, which is almost unrecognizable to the naked eye.

Parameters of CVD Lab Grown Diamonds

CVD 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 Rough 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 Rough Lab Grown Diamonds and natural diamonds?

There is no obvious difference between the Rough 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.

CVD Lab Grown Diamonds Details