Thread:Ryulong/@comment-29558690-20170225041742/@comment-92249-20170225042431

Do you not see how much of a reach you're making with this?

The Gems are feminine aliens whose entire being is a gemstone from which they project a hard-light body.

The Rock Humans are male Earth creatures who turn into stone and have psychic powers that take humanoid (generally) projections separate from them.

There is nothing in common between Steven Universe's Gems and JoJolion's Rock Humans or Battle Tendency's Pillar Men or any other concept from JoJo's Bizarre Adventure.