The Hidden Universe

The encounter with this stone was special. Don't think I'll come across another one like this. I felt the urge to set it in the rich 22ct yellow gold. Looking at it feels a little like staring into a hidden universe. Can you see the comet tails running through the stone?

The observable Universe is currently estimated to be 93 billion light-years in diameter. What is beyond the edge of what we can see? 

Anatase in quartz, emerald, 22ct yellow gold.

Tax included.