Okay we have tiled two of our homes now and are pretty good at it. BUT I paid someone to tile the backsplash in my kitchen because I wanted the diamond look and we had not tried the diamond effect of tiling yet. Okay so like a dummy I left my husband at home to meet the tile guys (they were mexican and spoke very little english). When I got home they were 3/4's done and had messed up. I had bought 3 colors of tile and two were so close in color they thought it was just one and they swore there was not a lighter color. I made them get all the boxes out and showed them they were wrong. I called the boss (which is who I hired) and he had to speak with them for communication. I went ahead and let them finish and he didn't charge me for the labor. I know that was a deal but everytime I look at them it upsets me the design is not what it should be. I've never seen it done but I would love to liquid nail just one row over the existing tile of the lighter color to give it a cool effect and get my lighter color in there. Can anyone tell me if this could be done?