Hi Gene - I have a question ? - Does a slab mean graded by a grading service our just slabed (ungraded) by a grading service - I been reading the BB and NGC is a grading service along with PGGS, PCI, and a couple others - there are at least 6 grading services that I know of - correct me if I'm wrong but isn't it a slab if it is slabed by a grading service graded or not ? - Dwain