this is not an exact replica, but i came as close as i could.
when you cut out the finished heart, you will need to make the curves rounder.
there's a straight line interrupting the curve on each side. [long story. LOL]
i couldn't figure out how to divide it into only three sections, so this version has four.
one file will make a block that's approximately 12" x 12" [that is to say, it should fit into the center of a 12" block.]
the other file is a 6" version.