Diamond Buzz on Instagram: "SAPPHIRE COLOURS When corundum takes on a colour other than red, the gemstone is typically classified as sapphire, meaning there are many colour varieties in sapphires. While the “official” colour of this gemstone is blue, the other colours such as pink, purple, green, orange and yellow are sometimes referred to as “fancy sapphires”. However, this term does not apply to the colourless, black and blue specimens. When iron is present in the chemical composition, the…
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