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Lab-grown diamonds and mined diamonds are both made of pure carbon and have the same chemical and physical properties. However, there are some key differences between the two types of diamonds.
Lab-grown diamonds are grown in a laboratory setting, while mined diamonds are formed naturally in the earth's crust. This means that lab-grown diamonds are not subject to the same environmental and ethical concerns as mined diamonds.

There are two main types of lab-grown diamonds:

Yes, lab-grown diamonds last over time. They are chemically, physically, and optically identical to mined diamonds. The only difference is the point of origin. Mined diamonds are formed inside the earth's surface, while lab-grown diamonds are created in the laboratory.

The origin of lab-grown diamonds can be traced back to the early 1900s, when scientists began experimenting with ways to create diamonds in a laboratory setting. However, it was not until the 1950s that the first successful lab-grown diamonds were created.

• Chemical vapour deposition (CVD): This method involves 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.
• High-pressure high-temperature (HPHT): This method involves 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.

Lab-grown diamonds, first successfully produced in the 1950s by General Electric (GE) scientist H. Tracy Hall, have significantly evolved over time. Initially, these diamonds weren't of high purity or size, but technological advancements have since overcome these limitations. The demand for lab-grown diamonds has been rising due to their ethical and environmental advantages over mined diamonds. They don't contribute to environmental harm associated with mining nor fuel armed conflicts, unlike some traditionally mined diamonds. As the demand for these diamonds increases, advancements in the technology used to produce them are expected to continue, making lab-grown diamonds more affordable and widely accessible.

• They are chemically, physically, and optically identical to mined diamonds. The only difference is the point of origin. Mined diamonds are formed inside the earth's surface, while lab-grown diamonds are created in the laboratory.
  

Lab-grown diamonds, just like natural diamonds, are among the hardest substances known to exist on Earth. As such, they do not age in the typical sense of the term. A diamond's crystal structure is incredibly stable, which gives diamonds their renowned hardness and durability. Consequently, both lab-grown and natural diamonds can theoretically last forever if properly cared for.

The origin of the first lab-grown diamonds were by a team of scientists at General Electric (GE) led by H. Tracy Hall. Hall and his team used a process called high-pressure high-temperature (HPHT) to grow diamonds. HPHT involves heating and pressurising carbon in a sealed chamber until it forms a diamond crystal.

• What are lab-grown diamonds? Lab-grown diamonds are diamonds that are grown in a controlled laboratory environment. They are made of the same material as natural diamonds, which is pure carbon. They have the same physical and chemical properties as natural diamonds, and they can be certified by the same gemological laboratories.