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CVD Lab Grown Diamonds Description

Lab-grown diamonds are diamonds grown in the laboratory using equipment that simulate the growth environment of natural diamonds. Both laboratory-grown diamonds and natural diamonds are real diamonds. The main chemical components of laboratory-grown diamonds and natural diamonds are carbon.
We can distinguish from the angle of formation method, price and appearance quality.
The first is the formation conditions. Natural diamonds are composed of carbon atoms and are formed after years of extreme high temperature and pressure deep underground, while laboratory-grown diamonds are grown in the laboratory using equipment through a chemical process. Laboratory-grown diamonds have the same chemical composition as natural diamonds. There are two main production processes for cultivating diamonds in the laboratory, one is the high temperature and high pressure method, and the other is the chemical vapor precipitation method.
The second is the price difference. Every natural diamond is unique, and the scarcity of diamonds determines the high price of diamonds. Lab-grown diamonds can be mass-produced, so the price is cheaper than natural diamonds. It is currently about a quarter of natural diamonds.
The third is appearance quality. Natural diamonds are formed according to the natural environment, so their quality cannot be controlled. The quality of cultivated diamonds can be controlled artificially by the growth process. With the continuous advancement of technology, the quality of laboratory-grown diamonds is getting better and better.
HTHP and CVD are the two main methods for making laboratory-grown diamonds.
HTHP: Due to the use of metal catalysts in the HTHP method, some metal will inevitably enter the crystal during the growth process, so it is magnetic. If the cleanliness is poor, it has strong magnetism. This probe cannot pass the latest drilling probes.

CVD: Since CVD is a method of depositing and growing a diamond film on a substrate (substrate), it is easy to see the layered structure and water ripple-shaped growth pattern of CVD under a 10x magnifying glass, which is easily distinguished from natural diamond.

Although both HPHT and CVD methods require the use of diamond crystal seeds to grow diamonds, they use different machines and scientific principles to grow laboratory diamonds. The laboratory-grown diamonds grown by the two methods have different shapes. It is easy to distinguish which is HPHT rough diamond and which is CVD uncut diamond.

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