I am thinking these days of my old stone which is 0.5 ct H/vvs2 GIA certified. At the time, GIA only had polish/symmetry grade w/o cutting grade. Both "very good". I can see it's not a perfect ideal. I am thinking recut it to "ideal" and set it in a pendant with halo. Is it worth the recutting for a 0.5 ct stone? How much will it cost and what's the final size will be? Any suggestions? Thanks!