We..
Are the Crystal Gems!
Recently, The Crystal Gems have discovered an anchient underground kingdom called "Gemsolia", multiple gems live there with houses of rocks, and it all is ruled by Green Diamond, a diamond who had left Pink, Yellow, and Blue diamond after her own planet turned on her.. She had hidden in earth for millions of years and later on found a way that gems could be made, a special Crystal that would create gems.. While they try to investigate the kingdom they have to decide.. to leave the gems and never return and let them stay in peace? Or tell them about the real world