4.0-5.0ct DEF Color VVS VS Clarity Man Made Rough Diamonds For Making 2 Carat Loose Diamonds

Man Made Rough Diamonds Description

Synthetic diamonds are made via HPHT or CVD methods nowadays.

High temperature and high pressure technology fully simulates the growth process of natural diamond, reproduces the reaction of carbon layer on the ground and converts graphite into diamond. High temperature and high pressure method is also called seed catalyst method. Graphite is a low pressure stable phase, and diamond is a high pressure stable phase. The transformation from graphite to diamond requires very high pressure and temperature conditions, which generally requires a pressure and temperature of 10 GPa and above 3000℃. If there are metal catalysts (such as Fe, Ni, Mn, CO and their alloys), the temperature and pressure conditions required for graphite to become diamond will be greatly reduced. Therefore, metal catalysts are involved in the synthesis of diamond by high temperature and high pressure method at present. As a solvent, the metal catalyst is between the carbon source (usually graphite) and the diamond seed. The carbon source is at the high temperature end and the seed crystal is at the low temperature end. Because the solubility of the carbon source at the high temperature end is greater than that at the low temperature end, the solubility difference caused by the temperature difference becomes the driving force for the diffusion of the carbon source from the high temperature end to the low temperature end. The carbon source gradually precipitates at the seed crystal and the diamond crystal grows up gradually. Because the driving force of crystal growth is caused by temperature difference, this method is also called temperature difference method.

Synthetic diamonds usually have no fluorescence under long wavelength ultraviolet, but yellow, green yellow and orange yellow fluorescence under short wavelength. Synthetic diamonds have characteristic banding phenomenon under ultra short wavelength ultraviolet or cathode ray, and different growth areas show different color fluorescence banding.

Parameters of Man Made Rough Diamonds

Man Made 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.

Man Made Rough Diamonds Details

Yuda Crystal is one of the world's leading lab grown diamond companies, mainly active in fields: Gem quality lab grown rough(Including HPHT and CVD) diamonds manufacturing and wholesale, lab grown polish diamonds manufacturing and wholesale, Industrial grade HPHT and CVD lab grown diamonds manufacturing and wholesale. We are a key player in the lab grown diamond business with regular clients. Our reputation in the lab grown diamonds market is based on both stable quality and quantity.

We are able to provide our clients with consistent supplies, offering them a full range of product categories in terms of size, quality and quantity.

Our priority at all times is to deploy our considerable resources to deliver consistently towards the success and growth of our clients businesses.

This dedication is rewarded by lasting relationship with our customers and partners based on mutual commitment, trust and integrity.