This carnelian is a truly vibrant colour. It is a bit on the bright side for a natural crystal. I think I see orange dye on the tip of the quartz pocket there.
This carnelian agate was probably perfect as it was before the dye. Leaving it in the sun will eventually return it to normal. 
 
This crystal has a nice banded pattern and the crystal itself is real, it's just been through some stuff.
Washed and incense dried as all our recycled crystals are.