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  Sapphires are the birthstone for the month of September, other than being famous because of Princess Diana’s engagement ring here are some facts about sapphire! Sapphire and ruby are under the same mineral aluminium oxide, and under the species of corundum. The red of ruby is caused by the presence of chromium, and sapphire by the presence of iron and titanium. Sapphire comes in varieties of colour, e.g. blue, green, yellow, colourless or even mixed of colour like orangy-pink which is fancy colour or more specifically Padparadscha sapphire. The hardness of the sapphire is 9 in the scale of 1...