>>50687479Let's name some who have a gem on their body or are based around them to start to narrow down how many really gem related pokemon we have, Sableye, diancie, carbink, persian, golduck, tentacool and tentacruel, staryu and starmie, espeon, slowking, maybe alolan muk but I can't tell if the white is rocks or gems, misdreavus, mareep evolution line, the regies, deoxys, the legendary genies, uxie, mesprit, azelf, zoroark, kyogre, groudon, dialga, palkia and giratina are connected to gems and a pearl for form change, arceus has gems on them and made the jewel of life in the movie, elgyem, beheeyem, roggenrolla, boldore, gigalith and lastly necrozma.
Only really gem pokemons would be deoxys, the regies, sableye, diancie, carbink, the gigalith evolutionary line and necrozma depending on how strict you are with this, I may have missed some mons from newer gens
