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http://niceice.com/diamond-buying-secrets/...buying-success/Total depth between 59 – 61.8% (pass)
Table diameter between 53 – 58% (pass)
Crown angle between 34.3 – 34.9 degrees (pass)
Pavilion angle between 40.6 – 40.9 degrees (pass)
Lower girdle facets between 75 – 78% (fail)
Star facets between 45 – 50% (last check with him, he increased the star length to 55%, so pass)
Girdle thickness between thin and slightly thick (pass)
http://www.prosumerdiamonds.com/how-to-pick-diamond/Table: 53-57% (pass)
Total Depth: 60 – 61.5% (max 62.5% for a 4% girdle) (pass)
Crown Angle (CA)/ Pavilion Angle (PA)
– For CA = 34°, PA = 41°
– For CA = 34.5°, PA = 40.6° – 40.8° (pass)
– For CA = 35°, PA = 40.6°
Star Length (SL) / Lower Girdle (LGF)
– For SL = 50%, LGF = 75 – 80%
– For SL = 55%, LGF = 75% (fail)
Girdle Thickness: Thin to medium (2.5 – 3% preferred) (pass)
http://beyond4cs.com/shapes/round/ideal-proportions/[attachmentid=8382174]
Table: pass
Crown: pass
Pavilion: pass
Depth: pass
http://www.heartsandarrows.com/hearts-arro...al-cut-dna.aspxPavilon: pass (optimum)
Crown: pass (optimum)
Table: pass (optimum)
LGF: pass (not optimum)
Star: pass (not optimum)
Crown angle = Tolkowsky’s ideal proportions
Pavilion angle = Close enough to Tolkowsky’s ideal proportions (40.75)
Don't worry about the "fail" part, those are just individual opinions from different websites. Also, don't worry too much about the faint fluorescence. In fact, according to
http://beyond4cs.com/grading/fluorescence/...parency-issues/, there is a significantly high chance that it won't cause any issue such as milky appearance. You may ask your seller to check for the appearance and see if it is milky or not, if he/she is able to get the images of the diamond, it is even better. Images will be diamond image, ASET image, idealscope image.
Lastly, among all the stones you show me, I think this is the one I will buy myself personally. Since we are buying without actually looking into the real diamond, then all we can rely is the figures, and it will be best if we can verify our decision with the necessary images.
Hope this helps and good luck.

Dude, this is dangerous! There is a term for this: buying blind. If the seller is not able to provide the scope images, I would not even waste time looking into its proportions.
The depth and table percentages, and crown and pavilion angles are only figures. They don't tell you as much as a scope image would.
This is actually from the WhiteFlash website. Emailed them for the images, but they replied with this: "This diamond is part of our virtual selection group so we would need payment to bring the diamond in for inspection and imaging."
The stone has faint fluorescence. Fluorescent diamonds usually cost less. Try and nego with the seller on this point. Maybe you can shave a few hundred off the listed price.