Ok I bought 3 blue diamond/ saphire from big Al's.... one git me worried because I noticed it had dark black markings in it.. I at 1st thought ma8it was a bacterial infection but it didnt die and looks healthy. I did dome research and now I'm thinking it might ge a blue rili... does anyone know much about them? Are they born with the markings or get it when they mature? Because I swear it didn't have the markings until recently. I post pictures soon