I could really use some help with this one. I'm really interrested in finding an AGS0 princess cut diamond and came across one online. The web site lists the cut as "Good" however the AGS report lists the cut as AGS0. How can that be? Wouldn't a rating of AGS0 imply that the cut is better than "Good"? I would like to consider buying this one but I need some clarification first. Thanks!