7mm 8mm 3ct 5ct Synthetic HPHT Diamond Lab Grown Diamonds For Ring

7mm 8mm 3ct - 5ct Rough Synthetic HPHT Uncut Lab Diamonds For Carat Diamond Ring Making

HPHT Lab Grown Diamonds Description

Lab-grown diamonds are diamonds grown in the laboratory. Lab grown diamonds are chemically and structurally the same as natural diamonds.

HTHP and CVD are the two main methods for making laboratory-grown diamonds.

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.

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.

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.
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. With professional equipment, the comparison of the color, crystal shape and crystal surface characteristics, internal inclusion characteristics, absorption spectrum and ultraviolet fluorescence characteristics of the tested diamonds can "completely distinguish the artificially cultivated diamonds from the natural diamonds

Parameters of HPHT Lab Grown Diamonds

HPHT 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.

HPHT Lab Grown 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.