As you turn this crystal around in the light, you are going to find so many beautiful areas to discover. It has lighter shades of purple and a darker section near the bottom of the stone.  Across the mid area and in other areas of your stone, there is a band of earthy red browns and the back is a rich cream shade with lighter soft gray whites.
 
This is a natural crystal cluster that came from a collector from the Thunder Bay area in Ontario, Canada.   As this is a amethyst cluster, you do have to take care when wearing is that you don't drop it on a hard surface.  It is a combination of so many tiny crystals all embedded into one surface.  
 
Your stone measures 1 1/4 inch tall by almost 1 inch wide. I have hand wrapped it with sterling silver wire.  Remember, this is a natural crystal so there are some rough areas but it is not terribly sharp or pointy.  Just use caution if you are wearing a delicate material in case of snags.