It's a stone of protection copied this from crystalvaults.com but it's a great description.  It is also said to be a stone of luck.
Throughout the ancient world, the Tiger’s Eye stone also represented the concept of the all-powerful Eye.
Some today would call this the third eye, the part of each of us which sees everything we do and searches into the deepest parts of our soul.
Families in ancient India, Africa, and Europe used this stone for this very purpose. By setting the Tiger’s Eye stone on the doorstep or window sill, it would scare off strangers who wanted to harm their children or steal from their houses by peering deep into their souls and is also said to ward off the evil eye
This beautiful piece has been made by my fair hand from recycled sterling silver and filled with healing energy 
 It's just £60 including free uk postage, a free sterling silver chain and optional gift box