I have a concert top, fully braced. I intend to weigh it, if it will balance on the platen of my scale.
Edit - now I am feeling obese, my spruce concert top weighs almost twice that much. I haven't cut the sound hole yet and it is a full rectangle (no waist) for a big 9" x 12" cigar box, but still. 110g!
Spruce, by the way. But the braces and bridge plate are cedar.