We recently tiled our bathroom with the 4x4 travertine tiles, while they came out lovely we used a border that has two metal tiles with a raised design in each border. The grout has now covered the dark tile and dried. Any suggestions on how to restore them. We sealed the wall first and have not sealed it again until i resolve this situation. The reason i bought the border was becasuse of the random dark metal tile and now they are covered in grout. Any ideas??