When sapphire is most popular, and most useful, in its deep blue wide range, the precious stone occurs in all colours besides crimson, with which the gemstone might be termed ruby. Corundum which is even a shade considerably less purple than ruby is automatically known as sapphire — pink sapphire. https://edgarhypes.answerblogs.com/26922303/the-fact-about-crimson-jewels-that-no-one-is-suggesting