Blue Moon was done with only one run. That means only 20 pieces are done. Double Beryl was done in two runs, means 40 pieces are available. "Violet me" is a one of a kind reflector. And my guess is this one is not available at all
A compare, the Violet Me is the left one, Double Beryl is the 2nd from the left, Blue Moon the 2nd from right.
At all this reflectors are not easy to get. They are popping up only once in a while. Think you need a long breath. Good luck with your search!