A sapphire is a precious gemstone that is a variety of the mineral corundum. It is typically blue in
colour, but it can also be found in a range of other colours, including pink, yellow, green, purple,
and orange. Sapphires are commonly used in jewellery, particularly in engagement rings and wedding
bands. They are also used in other types of jewellery, such as earrings, pendants, and bracelets.