![]() ![]() With a hardness of 9 on the Moh's scale, sapphires are extremely hard and durable, and are suitable for use in any kind of jewelry. Sapphire is one of the most important of all the colored gemstones and comes in a wide variety of colors: blue, pink, yellow, green, purple, orange, padparadscha, blue green, lemon yellow, color change, and black color. Although pure corundum is colorless, sapphire is usually colored from a combination of titanium and iron oxides. ![]() Sapphire and Burma Ruby are both corundum, sapphires are corundum of all colors except red.
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