have you tested the granite to determine whether or not it needs another coat of sealer?

I agree with @new-beginning. Especially with the black counters shown in the OP. Black granite needs no sealing at all. Your black granite did not need the original sealing, and does not need to be sealed again.

I sealed my previous granite twice in 8 years...

A penetrating sealer doesn’t change the sheen of the stone. You’re thinking of a surface film thing, like nail polish. That isn’t how sealer works. It sinks in, until it doesn’t. Then you wipe up the excess. Shiny stays shiny and matte stays matte.

*Sorry I forgot to mention this bit of info: the granite is black leathered, in case it matters...sorry I left that out* new-beginning...I didn't know you can test it! Man do I feel dumb. That'll be my next step, for SURE. And thank you Google for how to test granite. Thank you 'new'! Shannon_WI OMG, I sure hope you're right!!! You win best answer. lucky998877 Seriously?? The owner of the store I got my granite from told me ~1 year. The prob is, I live with a type A+ spouse and now I have to convince of a change in plans. LOL MaryAliceB Huh. Well, I really don't know what to think at this point. The granite store owner said ours is 'sealed' with this product: Akemi Stone Sealer Matte Finish ........ And that we needed to reapply once every year (or so). It's been 1 1/2 years. Regardless - I will test the granite tomorrow! Thanks everyone, mega appreciated!!