Hi Gerry, The pieces I was shown were large, relatively clear and had
a sharp six-ray star. It is highly unlikely they were chrysoberyl.
Certainly, a star chrysoberyl of that size and perfection would be
well beyond the capability of the average collector.
It is certainly possible that they were irradiated to produce the
color, but lacking almost any on the stones, it is
difficult for me to say. Thanks for responding.