I was surprised it turned out okay. I turned it green and left it in the soap for a week. It sank to the bottom and other walnut bowls had blackened the water so I forgot it. It barely warped.
Approximate dimensions are 5.5" high by 6" wide at it's widest. It's a bit less than .5" thick. I didn't measure the thickness of the rim. Just went by the old 'eh, that looks about right' method.
So what exactly is a graft line?