This is an orb.Orbs are believed (by many) to be ghosts in the form of balls of light. They are life forms that travel in groups and are believed to be the human soul or life force of those that once inhabited a physical body here on earth. Psychics claim to talk to them on a regular basis, and ghost hunters encounter them quite frequently. It is said that they are those spirits that have willingly stayed behind because they feel bound to their previous life or previous location for whatever reason. Because of this obsession they tend to become similar to a psychotic human beings. It should be...

emmmm flashlight?

I believe this is a true form Spirit/Soul/Entity form in which most call an orb. Perception9 Reseacher EC

Wow. How about we consider the likely explanations first? That's a reflection of the camera flash in the polished stone.

doesn't look like the stone's polished...

The stones are definitely polished. It's more obvious with the one on the left.