Sapphire gemstones are typically a rich blue color. Though blue is the most common sapphire color, other colors exist including white, pink and red (rubies). There are no limits to the color tone or saturation of color in a sapphire. A blue sapphire will reflect blue light because the crystal has titanium element within the stone. If a sapphire has other trace minerals such as chromium, then the stone will be pink in color. If a combination of elements is within the stone, you might have a lime green or a purplish-blue sapphire. A chemically pure sapphire crystal would be colorless.
Sapphires are extraordinarily unique from one to the next. No two are the same. An untreated sapphire is one that has been taken from the ground in which it came. Nothing at all was done to the stone to alter the natural beauty which only the earth created naturally. These sapphires are exceptionally more rare and valuable. For this reason, sapphires are extraordinarily unique from one to the next. No two are the same, sapphires are almost irreplaceable.