Help me pick between these 2 stones

[coloradorocky]

Help me pick between these 2 stones, both are GIA certified.

1.80 F VS2
7.81 x 7.87 x 4.75
Cut - Excellent
Sym - Excellent
Pollish - Excellent
Fluorescence - None
Table - 58%
Depth - 60.6%
Crown Angle - 34.5
Pavillion Angle - 40.6
Pavillion Depth - 43.0%
Crown Depth - 14.5%
Star - 50%
Lower Half - 80%
Medium to Slightly Thick Faceted - 3.5%
HCA =0.8
$17,015

http://www.uniondiamond.com/diamonds/diamonds.php?item_id=AB402427&search_type_id=2&action_type_id=2&network_id=0cf05810a0f83094f6e9972ef21cdd34#


1.82 F VS2
7.80 x 7.87 x 4.85
Cut - Excellent
Sym - Excellent
Pollish - Excellent
Fluorescence - None
Table - 56%
Depth - 61.9%
Crown Angle - 35.5
Pavillion Angle - 40.6
Pavillion Depth - 43.0%
Crown Depth - 16.0%
Star - 50%
Lower Half - 80%
Thin to Medium Faceted - 3.5%
HCA = 1.3
$18,582

http://www.whiteflash.com/round/Round-cut-diamond-2180287.htm#

 

[coloradorocky]

1.80 F VS2

 

[coloradorocky]

1.80 F VS2

 

[coloradorocky]

1.80 F VS2

 

[coloradorocky]

1.80 F VS2 Idealscope

 

[coloradorocky]

1.80 F VS2 Idealscope

 

[coloradorocky]

1.82 F VS2

 

[coloradorocky]

1.82 F VS2 Idealscope

 

[coloradorocky]

1.82 F VS2 ASET

 

[coloradorocky]

1.82 F VS2 SARIN - I realize this is different than the GIA certificate and has to do with calibrations being different on machines. Just thought I would add all the information I have.

 

[coloradorocky]

I''m very sorry that I had to do so many posts. I didn''t know how to add all of the pictures on one post. Any advice would be very much appreciated.

Thanks.

 

[coloradorocky]

1.80 F VS2 GIA Report

 

[coloradorocky]

1.82 F VS2 GIA

 

[coloradorocky]

1.82 F VS2 GIA

 

[stone-cold11]

I would go for the WF stone. The UD stone seems like it has obstruction issue.

 

[Steel]

On paper I would go for the WF stone.

However, the UD stone photographs well, I wonder if anybody has told that stone it should be a model!

WF would be ruled out by me because of the inclusion...what did your rep say about it?

 

[coloradorocky]

The 1.82 WF inlcusion is a white cloud that can be seen at 10x and at 30x you can see a black pinpoint in the cloud.

The 1.80 Union inclusion is a grayish cloud and a white crystal.

Both diamonds inclusions are not able to be seen from the naked eye.

Hope this info helps.

 

[Steel]

As long as both vendors are using the same yard stick for eye cleanliness then the inclusions would not be a factor. That said, I would not like to see an inclusion so obvious, face up on my VS stone on the 10x pic.

So of the two please put me down as voting for the UD.

 

[coloradorocky]

1.80 F VS2 HCA

 

[coloradorocky]

1.82 F VS2 HCA

 

[30yearsofdiamonds]

If those two stones are viewed 100 times to the naked eye and each time switched not a single viewer could tell the difference. Save yourself $1500 and buy the less expensive one. They are both nice.

 

[Lorelei]

The US Idealscope image might show slight obstruction but it might not be very visible at all in reality, looks like a nice diamond. The WF diamond also looks great.

 

[coloradorocky]

I definetly see the inclusion on the WF diamond. How are you able to tell the obstruction issue of the UD diamond by looking at the IS? I thought more red was better. Although, I''m not really sure what I''m looking for, other than comparing them to the idealscope website images. Any explanation of the IS images and how you can see an obstruction would be great. Thanks to all of you for your help. Going to make a decision tomorrow.

 

[Lorelei]

Date: 9/20/2009 10:41:27 PM
Author: coloradorocky
I definetly see the inclusion on the WF diamond. How are you able to tell the obstruction issue of the UD diamond by looking at the IS? I thought more red was better. Although, I'm not really sure what I'm looking for, other than comparing them to the idealscope website images. Any explanation of the IS images and how you can see an obstruction would be great. Thanks to all of you for your help. Going to make a decision tomorrow.

I can see from the varying darkness of the arrows and the shape of the arrow tips ( like paddles) that the image is showing obstruction. The red is fine, not something to do with this, you can see that the diamond is returning light well with minimal leakage but due to the proportions the diamond is showing slight obstruction.

http://www.ideal-scope.com/1.using_reference_chart.asp

Personally I would choose the WF diamond in this instance.

 

[coloradorocky]

Is the 35.5 crown angle on the 1.82 F VS2 an issue?

Thanks for all of your help?