Natural diamonds are precious gemstones formed deep within the Earth over billions of years. They are created under extreme heat and pressure, which causes carbon atoms to crystallize in a unique structure. This process occurs in specific geological conditions, typically in volcanic pipes or alluvial deposits. These diamonds are valued for their beauty, rarity, and durability. They are often used in jewelry, such as engagement rings and necklaces, due to their brilliant sparkle and hardness. Natural diamonds can come in various colors, including colorless, blue, yellow, and pink, each with its own unique appeal and market value.