For more than a thousand years, many jewellers have celebrated the exquisite beauty of sapphire. In earlier times, people believed that the firmament was actually an enormous blue sapphire, with the Earth embedded within it. Sapphires, as we know them today, come in different colours that reflect the varying shades of the sky—from the bright, translucent blue of a summer’s day to the deep blue vault of a moonlit midnight. Where Sapphires are Found Sapphires, like most gemstones, are mined from the ground. Sapphire is formed by natural volcanic and metamorphic processes that occur deep in the earth due to high pressure and temperature. Liquid magma slowly cools minerals such as corundum, from which sapphire gemstones are refined.
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