32.5 crown angle too shallow?

[MaximusCruiser]

Hi there...

I am considering this diamond and the one thing that stands out is the shallow 32.5 degree crown angle.

http://www.bluenile.com/sg/round-diamond-1-carat-ideal-cut-i-colour-si2-clarity_LD02084665

While the spread is great and the HCA score is 0.8, without additional information (no real diamond image available) do you think the shallow crown angle can play well with its other proportions? Or is it too shallow?

Crown Angle: 32.5
Table: 54%
Depth: 60.7%
Pavilion Angle: 40.8
Girdle: Thin to Medium 3%
Dimensions: 7.71mm, 7.74mm, 4.69mm
GIA cut grade: Excellent
Polish: Excellent
Symmetry: Very Good

Thanks.

 

[kenny]

Step one is to reject rounds that score above 2.0.
Step two is to get an Idealscope pic.

https://www.pricescope.com/tools/ideal-scope

Compare it to this chart.



Since Bluenile won't provide Idealscope pics I'd buy from a vendor who does.
Check out Goodoldgold, Whiteflash, Craftedbyinfinity, Briangavindiamonds, & Jamesallen.

 

[yssie]

What sort of setting will you be putting it in?
I don't like small crown angles with thin girdles for open 3-4prong settings - too much of a chipping risk for my peace of mind. The stone is bigger and girdle thickness is noted as a percentage of diameter, so if everything else about the stone is perfect and you're planning on a 6prong/bezel/halo setting I wouldn't recommend against it, but it's something to consider.

Nothing wrong with the proportions but they're not what most PSers look for. I would recommend getting the stone shipped out loose and making sure you like what you see in-person, since we don't have any info beyond the averaged and rounded numbers on the report.

 

[TC1987]

"Use caution when buying an SI2 from a drop shipper" was mentioned in another recent thread so I will just reiterate that. The SI2 diamonds are very picked over and usually the eyeclean ones will be immediately snapped up by a vendor like Good Old Gold or Whiteflash who has the diamond in house. You really need to ask what color those crystals are, especially the ones in the table area. Dark ones will at some point, stand out. It may be all the time, or just at a tilt, or possibly worse in some lighting conditions than others. All of that may be okay if don't need perfectly eyeclean all the time and/or at close range, though.

 

[MaximusCruiser]

What sort of setting will you be putting it in?
I don't like small crown angles with thin girdles for open 3-4prong settings - too much of a chipping risk for my peace of mind. The stone is bigger and girdle thickness is noted as a percentage of diameter, so if everything else about the stone is perfect and you're planning on a 6prong/bezel/halo setting I wouldn't recommend against it, but it's something to consider.

Nothing wrong with the proportions but they're not what most PSers look for. I would recommend getting the stone shipped out loose and making sure you like what you see in-person, since we don't have any info beyond the averaged and rounded numbers on the report.

Thanks for the advise! Unfortunately, the setting I was looking at is a 4-prong solitaire (like my avatar image), which runs the risk that you have warned.

 

[MaximusCruiser]

"Use caution when buying an SI2 from a drop shipper" was mentioned in another recent thread so I will just reiterate that. The SI2 diamonds are very picked over and usually the eyeclean ones will be immediately snapped up by a vendor like Good Old Gold or Whiteflash who has the diamond in house. You really need to ask what color those crystals are, especially the ones in the table area. Dark ones will at some point, stand out. It may be all the time, or just at a tilt, or possibly worse in some lighting conditions than others. All of that may be okay if don't need perfectly eyeclean all the time and/or at close range, though.

Thanks... I understand what you mean on the crystals. Thanks. That aside, I was concern with the shallow crown angle... should be a AGS 3 grade I think.

 

[John P]

Thanks... I understand what you mean on the crystals. Thanks. That aside, I was concern with the shallow crown angle... should be a AGS 3 grade I think.

It's at a cutting border that ranges from AGS1 to AGS3 in performance depending on particulars not-shown. Brillianteering/minor facet details and especially cut-consistency will influence the scoring. Having an ASET or Ideal-Scope would provide more information but would not indicate what the final AGS grade would be. It would need to go to AGS or a licensed user of their grading software for that info.