While sapphire is most popular, and most respected, in its deep blue selection, the precious stone occurs in all colors except pink, with which the gemstone could well be termed ruby. Corundum that is even a shade less pink than ruby is quickly identified as sapphire — pink sapphire. Actual

When sapphire is hottest, and most useful, in its deep blue range, the precious stone happens in all shades other than purple, with which the gemstone can be named ruby. Corundum that may be even a shade less pink than ruby is quickly called sapphire — pink sapphire. On the contrary, the re