Reflections not casting shadows in Luxcore?

I’m fairly new to Blender and Luxcore so have a lot to learn so apologies if this is a really daft question. I’m trying to get the light rays reflected from the gem to cast shadows via the text that’s in front of the gem - making the text more legible. I’m not sure why this isn’t happening already, can anyone advise please?


Blender file:

Maybe i’m missing something, but i’m not seeing the gem even having a material?

That may be because Luxcore uses it’s own material nodes - do you have Luxcore installed?

ahhh, i thought you were trying to get it to work with cycles

ISorry my bad, forgot to mention Luxcore in my original post! I wish cycles could do this stuff tbh, finding it really difficult to get the results I want