Amethyst is one of the master healers it's a stone everyone should have in their toolkit.  It's a stone for the third eye and crown chakras and is a fantastic aid for sleep.
Amethyst is a stone for Scorpio, Aquarius and Pisces. 
It brings calm and it's also a protection stone.  I have loads of it around the house it's one of my favourites.  I've wrapped it in copper to enhance the properties of the crystal and infused with reiki.
This beautiful piece is just £30 which includes free 1st class uk postage, a free cord necklace and gift wrapping if required