![]() Some of the most famous sapphires include: Its beauty and sophistication are deeply desired by many around the world, including royalty, and they’ve long been associated with wisdom and divinity. The superb sapphire has been treasured and desired for thousands of years, from Ancient Rome to modern times. ![]() Image: 18ct White Gold 1.74ct Sapphire Rainbow & Diamond Pendant This hardness also makes the sapphire incredibly useful for watchmaking, with many luxury timepieces featuring a sapphire crystal case. These gems score a 9.0 on the Mohs scale of hardness and can only be scratched by a diamond, making them fantastic stones for everyday jewellery, such as engagement rings. Hardness – Sapphires are one of the most durable naturally-occurring elements in the entire world. Sapphires that weigh up to 10 carats can be found in a variety of colours. A large majority of commercial-quality sapphires weigh less than five carats, with 2-carat sapphires being fairly common. These defects can sometimes devalue gemstones, although they can also increase the value of sapphires that exhibit asterism.Ĭarat – Sapphires range in size and can have a varying degree of carats. It occurs when the sapphire is examined in direct sunlight or with intense light and results from needle-like inclusions of rutile or hematite.Ĭlarity – Blue sapphires tend to have better clarity than rubies, but they also often possess long, thin inclusions called ‘silk’. There is also a rare variety of sapphire that exhibits different colours in different lights this colour-changing gemstone can show hues of blue in daylight and hues of red under incandescent light.Īsterism – This is a star-like pattern on a cabochon-cut stone. ![]() Secondary hues of green or grey can diminish the value of a sapphire. ![]() Different colours are caused by impurities in the gem yellow sapphires contain ferric iron, blue sapphires iron and titanium, and colourless sapphires have no contaminants, for example. The beautiful September birthstone is desired by many due to its superb properties that make any piece of jewellery high value:Ĭolour – The most valued hue is the rich cornflower blue that is most commonly associated with this gem. ![]()
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