According to this chart, it's a premium cut. Of course with a non-round, you need more than numbers. But based on the numbers there looks like it could be nice. I don't like the uneven girdle though... especially a 'very thin' on a princess could be a big problem. WHERE is the girdle very thin? If it's anywhere near the corners, I'd stay away. As for price in the PS bar above, click on 'prices' and run a search for similar stones. Also, which lab is this graded/ certified by?