What's this (these) worth? Amazing caster jewel(s) - proph

I'm still learning the ropes of what's worth what and can't find anything like this on poe.trade. Any guesses? I alched and vaal'ed a Jeweler's box and got two of them.

I have a feeling it's got to be pretty valuable, yeah?



Thanks!

pretty niche mods and build but you could prob get 2-3 ex each to the right buyer - i wouldnt expect anymore tho