Imagine if the rain that fell was not water but diamonds?

On the planets Saturn and Jupiter, the rain that falls isnt water its diamonds. Lightning in their atmospheres breaks methane gas into carbon, which slowly transforms into glittering diamond particles drifting down through massive storms. Imagine a dark sky, lightning flashing, and thousands of diamonds shimmering as they fall from the clouds. In those worlds, wealth isnt mined from the ground it falls from the sky.