One down & dirty way is to use an old towel - roll the stone onto it & two people can grab an end each. (This also works for moving sandbags)
Homemadegymstuff's solution is the Atlas Load Master...
Start out with a length of rope (Thankfully this is the last of the 'pink stuff')
Deconstruct, reform into a closed loop & splice in three hand loops.
ALM finished.
Rob (Kettlebell Training For Sport) Russell's practice stone, nice & safe; on it's way home.
Splicing & rope work aint just for Salty Old Sea-Dogs