Even though sapphire is most widely used, and most valuable, in its deep blue selection, the precious stone occurs in all colours besides crimson, with which the gemstone can be identified as ruby. Corundum that may be even a shade less red than ruby is immediately identified as sapphire — https://diy-beauty-treatments24689.glifeblog.com/26392776/5-tips-about-nature-s-spice-you-can-use-today