Need opinion on GIA round .82

[jbizzy]

Hello I was wondering if anyone could tell me whether my diamond is a good one. Here are the specs:

measurements: 6.01- 6.03x3.74 mm
carat weight: 0.82
clarity: vvs1
color: i
cut: Excellent
clarity char: feather
polish+ sym: Excellent
flur: none
TD: 62.1%
TS: 56%
CA: 35.0 degrees
PA: 41.2 degrees
CH: 15.5%
PD: 43.5%
LH: 75%
SL: 55%
girdle: thin to med
faceted: 3.0%
cutlet: none

 

[GoSounders]

HCA of 3.5 is merely okay. Got an ASET?

 

[jbizzy]

No I don't. But although it has an HCA of 3.5 it is a gorgeous diamond! Sparkles and shines like crazy. I just don't know if this is normal for a diamond like mine. I am happy about the purchase just wanted to make sure it was nothing out of the ordinary.. I'm still able to return it if anything that why I figured I go to the boards.

 

[jbizzy]

Here are pictures if that helps any

 

[GoSounders]

Well, if you want to know for sure, you either need an ASET/IS image or buy this stone and compare side-by-side:

http://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-2962069.htm

How does the price compare to what you paid?

 

[Lula]

The HCA cannot "see" the diamond. So visual inspection trumps the HCA. Also, the HCA prefers shallow crown and pavilion angle combinations. Your diamond has a steeper crown and pavilion angle combination, which is why the HCA score is so high. GIA rounds its numbers, which makes evaluating the stone just by the GIA report numbers pretty useless.

Have you have examined the diamond across a variety of lighting conditions to ensure that it does not look dark or dull in the center or around the edges? One test I use is to put the diamond under the edge of a table, cutting out all but indirect light. Does it still look bright when you do this?

Here is an old thread that discusses the impact of a 41 degree pavilion angle with a variety of crown angles if you'd like to learn more.
https://www.pricescope.com/community/threads/41-degree-pavillion-angle.65301/
This thread demonstrates that there are many combinations of crown/pavilion angles that will produce a beautiful diamond. My opinion is that we on PS tend to be too reliant on tools like the HCA, ASET, and Idealscope, which measure only light return but tell us nothing about brilliance, fire, and scintillation. Light return is only one ingredient in rather complex recipe.

 

[jbizzy]

The diamond is still bright as can be under the table. Thanks I guess running into threads about pavilion and crown angles had me worried about my own diamond because I didn't even know those sorts of things mattered to people. I didn't know if it was a bad thing. Thanks for linking that thread. Reading it made me understand it a lot more and worry a lot less . So when I look at the diamond..I haven't found anything I disliked about it so far!

 

[Christina...]

The HCA cannot "see" the diamond. So visual inspection trumps the HCA. Also, the HCA prefers shallow crown and pavilion angle combinations. Your diamond has a steeper crown and pavilion angle combination, which is why the HCA score is so high. GIA rounds its numbers, which makes evaluating the stone just by the GIA report numbers pretty useless.

Have you have examined the diamond across a variety of lighting conditions to ensure that it does not look dark or dull in the center or around the edges? One test I use is to put the diamond under the edge of a table, cutting out all but indirect light. Does it still look bright when you do this?

Here is an old thread that discusses the impact of a 41 degree pavilion angle with a variety of crown angles if you'd like to learn more.
https://www.pricescope.com/community/threads/41-degree-pavillion-angle.65301/
This thread demonstrates that there are many combinations of crown/pavilion angles that will produce a beautiful diamond. My opinion is that we on PS tend to be too reliant on tools like the HCA, ASET, and Idealscope, which measure only light return but tell us nothing about brilliance, fire, and scintillation. Light return is only one ingredient in rather complex recipe.

I'll save my fingers and just give a big +1 to all that Lula has said.