Lab-grown diamonds are made of pure carbon, just like natural diamonds. The main difference is that lab-grown diamonds are created in a controlled environment using advanced technology, rather than being formed deep within the earth. There are two main processes used to create lab-grown diamonds:

• High Pressure, High Temperature (HPHT): This method replicates the high-pressure, high-temperature conditions that form diamonds underground in the Earth. A small diamond seed is placed in carbon and exposed to extreme heat and pressure, causing the carbon to melt and form a diamond around the seed.

• Chemical Vapor Deposition (CVD): This method involves placing a tiny carbon seed in a sealed chamber and introducing a gas containing carbon. The gas is ionized, causing the carbon atoms to rain down on the seed and gradually build up into a diamond.

Lab-grown diamonds are chemically, physically, and optically identical to natural diamonds and will test as a diamond when a diamond tester is used.