Queen of Asia is the world's largest natural corundum blue sapphire. It weighs . It was found in Rajawaka in the Balangoda district of Sri Lanka, and it was revealed in December 2021. Estimated value is US$150 million (2024)
See also List of individual gemstones Serendipity Sapphire, largest star sapphire cluster in the world Star of Adam, largest star sapphire in the world
References