Diamonds are made from carbon atoms that are compressed and heated over millions of years. The process begins deep within the Earth's mantle, where temperatures can reach up to 2000 degrees Celsius and pressures can exceed 725,000 pounds per square inch. This extreme environment allows carbon atoms to bond together and form diamond crystals. The journey of a diamond begins with the cooling and solidification of molten rock, known as magma. As the magma cools, carbon atoms are forced to bond together to form diamond crystals. These crystals continue to grow over time as more carbon atoms are added to the structure.
