I would guess they are AA from saltwater grading, but it's been years since I did any any of that, plus I don't know what physical objects are surrounding it, so it's pretty much impossible for me to tell the grade. and I think #1 is the FW pearls (pm me, I just gotta know)!

I have been saying for years that there is alot of room for FW/saltwater pearls to be the same grade, same luster and everything, for my money I am always on the side of the FW tissue nucliated pearl.