The blue sapphire is highly precious and one of the most famous coloured gemstones. Associated with royalty, it is a very desirable gemstone due to its excellent colour (and range of hue & tones), hardness (9 on Mohs scale), durability, and lustre. The blue sapphire is very popular. You can read more about the blue sapphire in our gemstone guide.
Blue sapphires have been used to make the most beautiful, high end jewellery for many years and have often been worn by royalty. Blue sapphire can range in colour from very pale to very dark blue and it occurs when the sapphire crystals contain small amounts of iron and/or titanium, which act as a colouring agent.
Some of the most well-known blue sapphire producing countries are Sri Lanka (Ceylon), Madagascar, Australia (to name a few) Historically, many impressive sapphires were discovered in Kashmir at the end of the 19th century.