Diamonds are created through a natural process called metamorphism, which occurs under high pressure and temperature conditions deep within the Earth’s mantle. Carbon atoms bond in a crystal structure over millions of years, sometimes even billions, resulting in the formation of diamonds. Volcanoes bring these diamonds closer to the Earth’s surface during eruptions, where they can then be mined. Additionally, synthetic diamonds can be created artificially through methods like High Pressure High Temperature (HPHT) or Chemical Vapor Deposition (CVD), mimicking the natural processes to produce diamonds for various uses, including jewelry.