So, let's see how good your eyes are. Two of the six blue stone beads are smaller than the others. Can you spot them? You might think there are three, but there are really only two. When I was taking my initial photos I thought that I may have grabbed a couple of smaller beads, but this photo was the real proof. This afternoon I cut it apart and re-strung it. I think those two smaller beads may have been left overs from an older strand. Here it is after my fix.