EFG Color VVS VS SI Clairty CVD Lab Grown Diamonds For Making Good Color Vvs To Si Cvd Lab Diamonds

CVD Lab Grown Diamonds Description

Lab-grown diamonds are diamonds grown in the laboratory using equipment that simulate the growth environment of natural diamonds. HTHP and CVD are the two main methods for making lab grown diamonds.

HTHP means High temperature and high pressure method which uses graphite as raw material, introduces suitable metal catalysts, such as Fe, Co, Ni, Mn, Cr, etc., and can grow diamond at temperatures above 2000K and tens of thousands of atmospheres. Low-quality natural diamonds and unprocessed natural diamonds can be processed through the HPHT process to improve color and clarity. In addition to increasing the color grade of colorless diamonds, this process can also be used to change the color of the diamond to pink, blue, or yellow.

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.

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