Rupee Cut Christmas Garnet Gems

These are red-green christmas garnets cut in long hexagon "rupee" cuts!  These are sold by carat size or range--exact size and proportions vary.

Cr:YAG, aka 'Christmas garnet' is an exotic lab-created garnet and a really unique gem.   It has a rich  green base and strong red fluorescence. This means that it shows a mixture of red and green flashes, and which color predominates depends on the lighting (color and angle) as well as the background it is set against. Lighter toned stones will look almost pure green when placed on a white background but change to a mix of red and green when put on a dark background.  Cr:YAG is used in lasers as a 'q switch', which means it makes lasers charge up and release their energy in single powerful bursts. Basically, like all bad sci-fi and good RPGs you can upgrade your laser just by slapping a crystal on the end.