There are two main types of lab-grown diamonds:
- Chemical vapour deposition (CVD):
- CVD diamonds are grown by depositing carbon atoms onto a substrate in a vacuum chamber. The carbon atoms are heated to a high temperature, and they bond together to form a diamond crystal.
- CVD diamonds are the most common type of lab-grown diamond. They are relatively inexpensive, and they can be grown to be any size or Colour.
- High-pressure high-temperature (HPHT):
- HPHT diamonds are grown by heating and pressurising carbon in a sealed chamber. The high pressure and heat cause the carbon atoms to bond together to form a diamond crystal.
- HPHT diamonds are more expensive than CVD diamonds, but they are also more durable. They are also less likely to have inclusions, which are small imperfections that can affect the clarity of a diamond.
In addition to these two main types, there are also a number of other types of lab-grown diamonds, including:
- Amorphous diamonds: These diamonds are not fully crystalline, and they have a different structure than traditional diamonds. They are often used in industrial applications, such as cutting tools.
- Nitrogen-doped diamonds: These diamonds contain nitrogen impurities, which give them a yellow or brown colour. They are often used in jewellery because of their unique colour.
- Colourless diamonds: These diamonds are grown in a way that minimises the presence of impurities, which gives them a colourless appearance. They are often used in high-end jewellery.
The type of lab-grown diamond that you choose will depend on your individual needs and preferences. If you are looking for an affordable diamond, a CVD diamond may be a good option. If you are looking for a durable diamond with few inclusions, an HPHT diamond may be a better choice.
