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What are lab grown diamonds? MMR

What are lab grown diamonds?

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Lab grown diamonds are created in the laboratory by simulating the high-temperature and high-pressure environment inside the earth to create crystals similar to natural diamonds.
Lab grown diamonds rings
1. The principle of Lab grown diamonds
The principle of lab-grown diamonds is based on the formation process of natural diamonds. Natural diamonds are formed in high-temperature and high-pressure environments deep in the earth, and are formed from carbon elements that have been compressed and crystallized over a long period of time. Lab-grown diamonds simulate this high-temperature and high-pressure environment to create crystals in the laboratory that are similar to natural diamonds.

2. The manufacturing process of Lab grown diamonds
The creation process of lab-grown diamonds typically involves the following steps:

Screening raw materials: Making lab-grown diamonds requires high-purity carbon sources and metal catalysts. Usually, high-purity methane is used as the carbon source, and metals such as iron and nickel are used as the catalyst.

Pressure treatment: Put the raw materials into a high-temperature and high-pressure cultivation chamber for pressure treatment. In this process, the raw materials are heated to high temperatures and high pressures, causing them to crystallize into diamonds.

Crystal growth: Under high temperature and high pressure, the raw materials begin to crystallize and grow. This process can take anywhere from a few days to a few weeks until the diamond reaches the desired size and quality.

Cutting and polishing: Created diamonds need to be cut and polished to obtain the desired shape and luster.

3. The difference between laboratory-grown diamonds and natural diamonds
Although lab-grown diamonds and natural diamonds are very similar in appearance, there are some differences between them:

The formation environment is different: natural diamonds are formed in a high-temperature and high-pressure environment deep in the earth, while lab-grown diamonds are created in a laboratory to simulate this environment.

Different compositions: Although both lab-grown and natural diamonds are composed of pure carbon, lab-grown diamonds may contain some impurities from the raw material.

Price difference: Lab-grown diamonds are more affordable than natural diamonds because the manufacturing costs are relatively low. But in the market, natural diamonds are still the more popular choice.


Lab diamonds are created in the laboratory by simulating the high-temperature and high-pressure environment inside the earth to create crystals similar to natural diamonds. Although lab-grown diamonds and natural diamonds are very similar in appearance, there are some differences between them. Lab-grown diamonds are more affordable than natural diamonds, but natural diamonds are still the more popular choice in the market.