help – My Little Princess : Fairy Review

I can only get 1 color of gems. Every time i tap the owl, it gives me green gems and now i have 6 green ones! Then i found the purble andb yellow ones. But where are the other gem colors? I have looked everywhere and cant find any others! Does anyone know where the blue and red ones are? Anyone?
Review by Cutiemabob on My Little Princess : Fairy.