How do I safely remove the edge tile from a backsplash without damaging other tiles?

We recently had a granite tile backsplash installed (4 X 4 tiles) and it does not match up (counter was cut too long) with the edge of the new countertop (which was installed after the backsplash). Therefore, I need to remove the granite edging (pencil piece) without damaging the tiles next to it so we can add tiles. Any ideas?? Thanks.