Gems and stuff ignoring any scales - and knowing that.
I love tourmalines.
This image does not look like tourmalines. Their refraction and dispersion is different. However on a trade show I once saw a green/blue/pink set of paraiba tourmalines. They looked so amazing - far better - anyway, I loved them and took them as a maverick to make that image.
The gem shape is based on Cut Diamond
by Thingyverse user M_G. (I fixed a problem that interfered with transparency)
Refrained from retouching the stripes on the main faces - seems to be a flaw from remeshing and smoothing in Blender.
Arranged & textured in Blender, rendered using Yafaray (Direct Lighting @ 32 aa samples for speed & noise reduction).
Porting for LuxRender not yet successful as I don't get the writing mapped to the label on the floor …
(but the gems look damn hot in Lux!
P.S.: Would make nice Kunzites too - just need a pleochroism plugin for Blender ...