White VVS VS CVD Synthetic Diamond 7ct 6ct 5ct Lab Grown Diamond

White Color 5-7ct VVS VS Synthetic CVD Lab Created Rough Diamonds For Cutting DEF Color CVD Polish Diamonds

CVD Lab Grown Diamonds Description

Laboratory-grown diamonds have many different names-laboratory diamonds, laboratory-made diamonds, laboratory synthetic diamonds, and even synthetic diamonds.
Although laboratory-grown diamonds are formed in different environments and conditions from natural diamonds, both natural diamonds and cultivated diamonds are crystals composed of pure carbon, and the physical properties, chemical properties, crystal structure and optical properties of the two are exactly the same. Lab rough diamonds are grown in the laboratory by imitating the high temperature and high pressure environment of diamonds deep in the earth.
Due to the different growth environments of laboratory-grown diamonds and natural diamonds, the shape, clarity and color of the diamond will be different, so the price will also be different. However, the price of laboratory-grown diamonds is still relatively low compared to that of naturally mined diamonds.
HTHP and CVD are the two main methods for making laboratory-grown diamonds.

HTHP: High temperature and high pressure method (HTHP) uses graphite as raw material, introduces suitable metal catalysts, such as Fe, Co, Ni, Mn, Cr, etc., and can synthesize diamond at temperatures above 2000K and tens of thousands of atmospheres.

CVD: Chemical Vapor Deposition (CVD) is a method of decomposing raw materials at high temperatures to produce active particles such as carbon atoms or methyl groups, and depositing and growing a diamond film on the substrate (substrate) under certain process conditions Methods.

Whether laboratory-grown diamonds or natural diamonds, loose diamonds after cutting and polishing can not be distinguished by the naked eye. It can be detected only with the help of professional equipment.

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