I put in for the F40T12 lamp and looked for 90% and above CRI.  Three lamps C50, DX and (!!) Natural. I thought it was discontinued but it is there as an ECO.  Color temp is 3700 with 90% CRI. Yeah, bring it back into the stores !!

Last I checked, those Naturals were super expensive. It seems like they were over $10 per lamp a few years ago.