Corundum

Corundum is an aluminum oxide mineral renowned for its exceptional hardness, second only to diamond. Its most valuable and famous varieties are the vibrant red ruby and the deep blue sapphire, among the world's most coveted gemstones. Pure corundum is colorless, but trace metal impurities, such as chromium (for ruby) or iron and titanium (for sapphire), impart a stunning array of colors. Beyond the classic red and blue, corundum can be pink, yellow, green, purple, orange (padparadscha), and even exhibit color change or asterism (star effect).

Thanks to its extraordinary hardness (9 on the Mohs scale) and wear resistance, corundum is widely used not only in jewelry but also in industry as an abrasive and for manufacturing high-tech components (e.g., watch crystals, lasers).

Corundum deposits are found worldwide, notably in Myanmar, Sri Lanka, Thailand, India, Madagascar, and Australia, which yield specimens of the highest quality.

Collectors prize corundum for its beauty, color diversity, historical significance, and, of course, its exceptional physical properties, making it a true natural treasure. Its durability and brilliance ensure that corundum pieces will retain their allure for generations.