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Need help choosing between 2 Diamonds...Have all stats!

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Treasure43

Brilliant_Rock
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Mar 11, 2009
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BF and I went shopping today and came away with two choices for the stone. Both are round brillants and both have been AGS certified as 0 cut. Both are ideal for symm. and polish obviously as well as cut.


The first one is .922 carats, I in color, SI1, with a light performance of 1.

Diameter= 6.25
Depth=62.6%
Table= 53.8%
Crown=16.2%
Cutlet=.4%
Pavilion=43.4%
Girdle=1.4% graded thin-medium (closer to medium)


The second diamond is .838 carats, G in color, VS2

Diameter=6.02x6.04x3.76mm
Depth=62.3%
Table= 56.4%
Crown=15.3%
cutlet: none
pavilion: 43.4%
girdle= 1.5%
Fluorescence is negligble.


The price on both is about the same. My concern with the first one is that the setting I want has G-H diamonds in it which I'm afraid will make the diamond look yellow. We asked the jeweler to look around for a stone more like the second stone with an SI1 in clarity that was around .90-.99 carats.
 

Lorelei

Super_Ideal_Rock
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42,064
Date: 3/21/2009 3:49:21 PM
Author:Treasure43
BF and I went shopping today and came away with two choices for the stone. Both are round brillants and both have been AGS certified as 0 cut.


The first one is .922 carats, I in color, SI1, with a light performance of 1.

Diameter= 6.25
Depth=62.6%
Table= 53.8%
Crown=16.2%
Cutlet=.4%
Pavilion=43.4%
Girdle=1.4% graded thin-medium (closer to medium)


The second diamond is .838 carats, G in color, VS2

Diameter=6.02x6.04x3.76mm
Depth=62.3%
Table= 56.4%
Crown=15.3%
cutlet: none
pavilion: 43.4%
girdle= 1.5%
Fluorescence is negligble.


The price on both is about the same. My concern with the first one is that the setting I want has G-H diamonds in it which I'm afraid will make the diamond look yellow. We asked the jeweler to look around for a stone more like the second stone with an SI1 in clarity that was around .90-.99 carats.
Hi Treasure,

Can you get the crown and pavilion angles rather than percents please? These should be on the AGS report. The first isn't actually an AGS0 if it has been graded 1 by the way, can you also check the cut grade for the second please? What are the polish and symmetry grades of each diamond? The first is also a bit deeper than I personally prefer - so if you could get the above info and the diameter in full of the first one if you are still considering it that would help.
 

Treasure43

Brilliant_Rock
Joined
Mar 11, 2009
Messages
655
For the first one I only have the percents as I didn't get a copy of the AGS report.

The second diamond has a crown angle of 35 and a pavillion angle of 41.1

As for the first one, it got zeros on everything on the serum report, but for some reason someone had written LP was a 1 on it so that may be an error.

The polish and symmetry grades were ideal for both for both damonds. The cut grade for the second says AGS Ideal 0.
 

Lorelei

Super_Ideal_Rock
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42,064
Date: 3/21/2009 4:06:53 PM
Author: Treasure43


For the first one I only have the percents as I didn''t get a copy of the AGS report.

The second diamond has a crown angle of 35 and a pavillion angle of 41.1

As for the first one, it got zeros on everything on the serum report, but for some reason someone had written LP was a 1 on it so that may be an error.

The polish and symmetry grades were ideal for both for both damonds. The cut grade for the second says AGS Ideal 0.
The second has steep deep angles...It definitely says AGS 0 on the AGS grading report? Or have you just seen the Sarin reports for the diamonds?
 

Treasure43

Brilliant_Rock
Joined
Mar 11, 2009
Messages
655
I have the AGS report in hand and it says it has been AGS certified Ideal Cut 0. It's also been laser inscribed and I looked at it under the microscope and the numbers match.
 

Lorelei

Super_Ideal_Rock
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Date: 3/21/2009 4:18:09 PM
Author: Treasure43
I have the AGS report in hand and it says it has been AGS certified Ideal Cut 0. It''s also been laser inscribed and I looked at it under the microscope and the numbers match.
Treasure, what is the date on the AGS report?
 

Treasure43

Brilliant_Rock
Joined
Mar 11, 2009
Messages
655
I looked up the diamond on AGS''s site and here is what I found:

AGS#: 10240904
Report Type: Diamond Quality™ Document
Shape and Style: Round Brilliant
Measurements: 6.02 - 6.04 x 3.76 mm
Cut Grade: AGS Ideal 0
Color Grade: AGS 1.5 (G)
Clarity Grade: AGS 4 (VS2)
Carat Weight 0.838
Fluorescence: Negligible
Comments:

" AGSL 10240904" has been inscribed on the girdle of this diamond.
Additional clouds are not shown.

Polish: Ideal
Symmetry: Ideal
Table: 56.4%
Crown Angle: 35.0
Crown Height: 15.3%
Girdle: Faceted, 1.5% to 4.1%
Pavilion Angle: 41.1
Pavilion Depth: 43.4%
Star Length: 53%
Lower Girdle Length: 78%
Total Depth: 62.3%
Culet: Pointed
 

RBsearch

Rough_Rock
Joined
Jan 20, 2009
Messages
98
I'm confused by this. When I enter those numbers into the HCA tool, the diamond scores a 3.0 and falls outside of AGS 0 range. According to the OP, this stone is AGS 0 with the following specs:

Depth=62.3%,
Table= 56.4%
Crown=35 deg
Pavilion=41 deg

Perhaps there was a typo? I have no clue.

ETA: This is in reference to Diamond #2 in the original post
 

Treasure43

Brilliant_Rock
Joined
Mar 11, 2009
Messages
655
I''m slightly confused as well because I got the same thing when I used the HCA...yet AGS certifies it as Ideal Cut 0.
 

Stone-cold11

Super_Ideal_Rock
Joined
Sep 9, 2008
Messages
14,069
Date: 3/21/2009 7:05:49 PM
Author: Treasure43
I''m slightly confused as well because I got the same thing when I used the HCA...yet AGS certifies it as Ideal Cut 0.
sometimes that happens, especially for steep/deep like in your case, we would like to see the ASET image of the stone to decide.
 

Treasure43

Brilliant_Rock
Joined
Mar 11, 2009
Messages
655
I don''t have any images. Just curious what you meant by steep/deep? I triple checked the numbers to make sure they were right....
 

Stone-cold11

Super_Ideal_Rock
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Date: 3/21/2009 9:10:14 PM
Author: Treasure43
I don''t have any images. Just curious what you meant by steep/deep? I triple checked the numbers to make sure they were right....
It is not really steep/deep, just a little deeper in the pavilion for that crown angle. These might show some light leakage in the pavilions but, depending on other factors such as lower girdle facets and optical symm, that might not happen, which is why we need ASET images.
 

Lorelei

Super_Ideal_Rock
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Date: 3/21/2009 7:20:44 PM
Author: Stone-cold11



Date: 3/21/2009 7:05:49 PM
Author: Treasure43
I'm slightly confused as well because I got the same thing when I used the HCA...yet AGS certifies it as Ideal Cut 0.
sometimes that happens, especially for steep/deep like in your case, we would like to see the ASET image of the stone to decide.
Yes this does happen occasionally, this is a hard one to call - definitely more info is needed but these are brick and mortar sold I believe so ASET will not be possible.
 

Lorelei

Super_Ideal_Rock
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Date: 3/21/2009 9:10:14 PM
Author: Treasure43
I don't have any images. Just curious what you meant by steep/deep? I triple checked the numbers to make sure they were right....
Steep deep which this diamond is as both the crown and pavilion are a steep and steep combo , means the angles can be too steep and deep to work well together and can result in light leakage. This can happen even with AGS0 diamonds occasionally but it can mean that the diamond might not be the best out of the AGS0 cut grade due to possible leakage ( dark areas can be seen on the diamond due to light leaking out). This is why some of us don't assume even AGS0 are all created equal. To avoid steep deep crown and pavilion, look for these angles - crown 34- 35 - pavilion 40.6 - 41 ( 35/ 41 is borderline steep deep but can be ok in some cases).
 
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