Photos enlarged to show detail - see the description for measurements.

These beads are all made using transparent light aqua and transparent med amethyst. 

The focal bead is half amethyst and half aquamarine with plunge ("eye") dots around the circumference. It measures 13.5mm wide by 20 mm tall.

 

The remaining beads measure from 8mm to 10mm wide and from 12mm to 15mm tall (not including dot height.)

I've included a couple of Czech window beads and some sterling spacers to finish the set.