Blue sapphires are primarily sourced from regions including Kashmir, Sri Lanka, Myanmar (Burma), and Madagascar. Kashmir sapphires, renowned for their vivid blue hue and velvety texture, were predominantly mined in the late 19th and early 20th centuries. Sri Lanka, formerly Ceylon, is notable for producing sapphires with lighter shades of blue. Myanmar is acclaimed for its deep blue ... https://rashiratanjaipur.net/Blog/top-origins-of-blue-sapphire/