Pink diamonds are rare gemstones known for their unique pink hue, which can range from light to deep shades. Their color is caused by a distortion in the diamond's crystal structure during formation, making them one of the most sought-after and valuable types of diamonds in the world. These diamonds are primarily found in Australia, particularly in the Argyle mine, which was one of the largest sources of pink diamonds until its closure in 2020. Due to their scarcity and beauty, pink diamonds are often used in high-end jewelry and are considered a symbol of luxury and exclusivity.