Please help me to decide

[mededu]

I’m going to buy one from these but hard to make up my mind. Which one should I pick? Which one to avoid? Any other suggestions? Many thanks.

Priority:
0.8-0.9ct
cut > color > clarity

1) 0.80 Carat E-VS2 Hearts & Arrows Ideal Cut Round Diamond $6080
Cut: Hearts & Arrows Ideal
Color: E
Clarity: VS2
Certificate: AGS

Depth: 62.1%
Table: 54.3%
Polish: Ideal
Symmetry: Ideal
Girdle: Thin to medium
Culet: None
Fluorescence: Negligible
Measurements: 5.94*5.97*3.70
Crown Angle: 34.7
Crown %: 15.60
Pavilion Angle: 40.9
Pavilion %: 43.20
http://www.jamesallen.com/diamonds/E-VS2-Ideal-Cut-Round-Diamond-1391338.asp?b=16&a=12&c=77&cid=131

2) 0.80 Carat F-SI1 Hearts & Arrows Ideal Cut Round Diamond $4080
Cut: Hearts & Arrows Ideal
Color: F
Clarity: SI1
Certificate: AGS

Depth: 61.8%
Table: 56.7%
Polish: Ideal
Symmetry: Ideal
Girdle: Thin to medium
Culet: None
Fluorescence: Negligible
Measurements: 5.95*6.00*3.68
Crown Angle: 34.8
Crown %: 15.10
Pavilion Angle: 40.9
Pavilion %: 43.30
http://www.jamesallen.com/diamonds/F-SI1-Ideal-Cut-Round-Diamond-1236905.asp?b=16&a=12&c=77&cid=131

3) 0.83 Carat D-SI1 Hearts & Arrows Ideal Cut Round Diamond $4660
Cut: Hearts & Arrows Ideal
Color: D
Clarity: SI1
Certificate: AGS

Depth: 62.2%
Table: 56.4%
Polish: Ideal
Symmetry: Ideal
Girdle: Thin to slightly thick
Culet: None
Fluorescence: Negligible
Measurements: 5.99*6.04*3.74
Crown Angle: 35.1
Crown %: 15.30
Pavilion Angle: 40.9
Pavilion %: 43.10
http://www.jamesallen.com/diamonds/D-SI1-Ideal-Cut-Round-Diamond-1236907.asp?b=16&a=12&c=77&cid=131

4) 0.861 ct F SI1 Expert Selection Round Cut Loose Diamond $5560
Color F
Clarity SI1
Cut Ideal
Certificate AGS

Light Performance Ideal
Polish Ideal
Symmetry Ideal
Depth % 61.8
Table % 55.3
Crown Angle 34.7
Star 55.0
Pavilion Angle 40.9
Crown % 15.3
Lower Girdle % 77.0
Measurements 6.08x6.13x3.78
Culet Pointed
Fluorescence Negligible
Girdle Thin to Slightly Thick
http://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-2668194.htm

5) 0.80 ct F SI1 Premium Select Round Cut Loose Diamond $4894
Color F
Clarity SI1
Cut Excellent
Certificate AGS
Light Performance Ideal
Polish Excellent
Symmetry Ideal
Depth % 61.1
Table % 57.5
Crown Angle 34.8
Star 52.0
Pavilion Angle 40.8
Crown % 14.7
Lower Girdle % 77.0
Measurements 5.97x5.99x3.65
Culet Pointed
Fluorescence Negligible
Girdle Thin to Medium Faceted
http://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-2645107.htm

6) 0.8ct E SI1 Branded Solasfera Diamond ~$5200
Color: E
Clarity: SI1
Lab Report: GIA

Optical Symmetry: Solasfera
Polish: Excellent
Symmetry: Excellent
Fluorescence: None
Culet: None
In House: Yes
Width: 5.95mm
Length: 5.99mm
Depth: 3.68mm
Table Percentage: 55.78%
Depth Percentage: 61.76%
Crown ∠: 34.50°
Crown Depth: 14.50%
Pavilion ∠: 40.75°
Pavilion Depth: 43.90%
http://www.goodoldgold.com/diamond/4925/