I'm selling those within the hour, the auction is one of the two I've been running this last ten days. I decided that the spend of money and effort needed to use those crystals wasn't one I wanted to try, and I had a sudden need of money for other things.
Zoof, what's that red like? Can you get an actual wavelength and power measurement? I'm interested in those because I think they use Rohm diodes. He bought at least 2000 of those so it seems likely enough.