Sapphire is without exception one of the most beautiful, durable and precious of all gemstone. It is a variety of the mineral corundum. Consisting of aluminum oxide (AL2O3) with varying amounts of trace elements such as titanium, iron, copper, chromium, vanadium, and magnesium. Falling in at a 9 on the Mohs scale, it is an incredibly durable gemstone for everyday wear. Its color is typically known for being blue, but natural or "fancy" sapphire also occurs in every color of the rainbow. Ruby is the only variety of this gem that is not called sapphire. This is merely a tradition, but isn't tradition fun?