Beyond astrological signs, there are several other symbols based on someone's birthday. Each month has a gemstone – and some even have more than one. With about 100 gemstones out there, that's a lot ...

June has several symbols that identify those born the summer month. Alexandrite comes from a rare mineral that changes color depending on the light. Alexandrite can appear green or blue in daylight or ...

This gem belongs to the corundum family. Corundum is inherently colorless, according to the International Gem Society. So, each stone's elemental structure – such as the presence (or lack) of iron, ...