The second is 43¼" x 50" x ¾" BUT there is a flaw running down this piece. If you were to cut out the flaw, you would have 2 pristine pieces of 43¼" x 32" and the other would be 43¼" x 18" - $75 OBO
I am including a picture of the fireplace hearth that we used the stone for because it shows the color better. It is really more taupe/tan than the gray the other photos look like