Kashmir corundum 4.2 ct

Kashmir is renowned for producing some of the world’s most sought-after sapphires, often referred to as Kashmir corundum. Corundum is a mineral composed of aluminum oxide, and it’s the second hardest natural substance after diamond. While colorless corundum is known as white sapphire, colored varieties are considered precious gemstones. The red variety is called ruby, and all other colors are classified as sapphire. Corundum is valued for its hardness, brilliance, and vibrant colors. It’s a versatile gemstone used in various types of jewelry, from the iconic red of rubies to the many hues of sapphires, including blue, pink, yellow, and more.