It absolutely stuns me that a seller asking for $9,500-$11,500 posts pics taken with an Iphone!! OMG!
Getting beyond though appraisals are not grading reports and you are asking for trouble shopping for diamonds that don't have them. Without a grading report you can't verify that the stats and value are true. Sorry!
And btw, I wouldn't chose a setting that was that lightweight---it will bend for sure.