After that it was assumed that the gem was also a preserver of secrets. Pope Innocent III permitted sapphire in episcopal rings in the 13th century, and it was supposed to be set in pure gold. Throughout centuries sapphire was regarded as a gemstone of religious teachers. It is an exquisite pink birthstone adored by many people. The rarest in nature and the most expensive non-blue sapphire is called padparadscha.
In the US sapphire has to be of a certain red tone to be called a ruby. You can also say that ruby is a red variety of sapphire. One of the most popular and timeless tints of the gem is velvety blue, also called ‘bleu du roi’ or royal blue. This gem is known as a blue birthstone though it can come in a variety of other colors like black, yellow, orange, grey, pink, purple, orange, brown, and even colorless. This means that this gem is resistant to wear and tear and can be worn every day. On the Mohs scale it has a hardness of 9 which is just one behind diamond.
Sapphire is a gemstone variety of a mineral called corundum. If you use these links to buy something we may earn a commission.
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