The birthstone for September, the sapphire is associated with purity of the soul. This stone is a relative of the ruby and also another form of the mineral known as corundum. Corundum is a drab grey mineral in its natural form. All forms of this mineral are known as sapphires except for the red ruby.Because of the presence of iron and titanium within the structure of the crystal, sapphires are blue in color. The color ranges from very light, pale blue to a deep indigo. The medium-deep shade of blue, known as cornflower blue is the most valued shade.
The sapphire birthstone for September also appears in several other natural colors and shades. Th...
VIEW FULL ENTRY