G H Color VS1 SI1 HPHT Lab Grown Melee Diamonds 1mm 1.5mm 2mm

1mm - 2mm G-H Color VS1-SI1 HPHT Lab Grown Melee Diamonds

Lab Grown Melee Diamonds Description

Lab-grown diamonds are diamonds grown in the laboratory using equipment that simulate the growth environment of natural diamonds. Both lab grown diamonds and natural diamonds are real diamonds. The main chemical components of lab grown diamonds and natural diamonds are carbon.
Lab grown diamonds is usually produced by chemical vapor deposition (CVD) or high pressure high temperature (HPHT) methods.
For a long time, people believed that diamonds could only be created under high pressure and high temperature conditions, imitating the formation of natural diamonds. This is called HPHT(high pressure and high temperature) method.
The physical properties of CVD synthetic diamonds are within the same range as natural diamonds in terms of hardness, thermal conductivity, and strength. Therefore, CVD synthetic diamonds have the same hardness and durability as natural diamonds, and when cut into gems, they have the same brightness and fire. By controlling the introduced impurities, the optical properties can be changed in a wide range. For example, the crystal can be made close to colorless by controlling the remaining nitrogen level of the gas in the growth chamber. Blue diamonds can be made by adding boron gas; while pink, yellow or other colors can be made using gas mixtures, such as high nitrogen concentration. A special advantage of the CVD diamond production process is that all crystals grown in a growth chamber have the same color and clarity, which is convenient for grading and matching. Through continuous growth and synthesis, the color can be accurately repeated to ensure the reproducibility of color, clarity and size, while also ensuring the supply of high-quality synthetic diamonds for the gem industry.

Parameters of Lab Grown Melee Diamonds

Lab Grown Melee 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.

Lab Grown Melee Diamonds Details