The glass used to create these beads is from Murano.
There are 12 beads in this set.
These beads come in all different shapes and sizes but most are 10 mm.  There are a couple of beads that are smaller and a couple that are larger, but not by much.  The two end beads are approximately 5 mm.
All of the beads are different shades of purple.

I wish the pictures turned out better.  So much brighter and more colorful looking in person.