Which one?== 2+ct Diamonds==Advice Welcomed==Engagement ring

[Lotus888]

Hi

I am looking for an engagement ring for my gf.
What do you guys think about these 3 diamonds??
Are they brilliance&fire balanced?
As the AGS parameters states all 3 of them score overall 0
And all of them had a GIA 3X Excellent certificate.
Which one to choose?


Advice highly appreciated!!! thanks!!!

 

[TC1987]

Re: Which one?== 2+ct Diamonds==Advice Welcomed==Engagement

Did you run the HCA cut adviser (under Tools here) on then and see if the scores are 2 or less? The advice on here is you should check that for GIA excellent because their range is too wide.

Of those three, I like the first one best just because it has proportions closer to what I would choose, table is a bit big (my own cutoff is 56%) but I like the fatter arrows.

 

[diamondseeker2006]

Re: Which one?== 2+ct Diamonds==Advice Welcomed==Engagement

None of these is as well cut as our signature and second level stones here usually are, but of the three, I think the first one looks better than the other two. I wouldn't particularly care to pay for FL clarity, though. I'd rather have VS1 and better cut.

 

[Dancing Fire]

Re: Which one?== 2+ct Diamonds==Advice Welcomed==Engagement

Pass on all 3

 

[Lotus888]

Re: Which one?== 2+ct Diamonds==Advice Welcomed==Engagement

Hi

Thank you for your quick reply.

I had run HCA for all of them, two scores 2.2-2.3
the first one scores 1.3

Im so confused, because the AGS parameters of all these three stone are 0 (overall cut grade and light performance).

So HCA is more accurate than the AGS parameters??

 

[Lotus888]

Re: Which one?== 2+ct Diamonds==Advice Welcomed==Engagement

more opinions?~~~~

 

[Gypsy]

Re: Which one?== 2+ct Diamonds==Advice Welcomed==Engagement

No.

From John Pollard:

HCA usage warnings here: https://www.pricescope.com/wiki/diamonds/holloway-cut-advisor

In Context

Just imagine that you're trying to get to know someone's looks and personality...

An HCA score is merely like having a chalk outline of the person.
Grading report numbers are like having the person's height, weight and clothing measurements.
An ASET or Ideal-Scope (for RB) image is like having a still photo of the person.
An AGS Platinum "0" in performance is like a panel of judges confirming that the person's personality and looks are solid.
A 3D scan in sophisticated cut-calculation software is like having a video interview with the person.

Eventually, it's a lot of great information. All told it's enough for an experienced cut-specialist to make very detailed performance predictions. But in the end, a live date (dinner & a movie?) will be how you finally judge total personality and looks as you, individually, perceive them.

I hope this is helpful.

 

[Gypsy]

Re: Which one?== 2+ct Diamonds==Advice Welcomed==Engagement

The entire purpose of faceting a diamond is to reflect light.
How well or how poorly a diamond does this determines how beautiful it is.
How well a diamond performs is determined by the angles and cutting. This is why we say cut is king.
No other factor: not color, not clarity has as much of an impact on the appearance of a diamond as its cut. An ideal H will out white a poorly cut F. And GIA Ex is not enough.
So how to we ensure that we have the right angles and cutting to get the light performance we want?
https://www.pricescope.com/wiki/diamonds/diamond-cut
Well one method is to start with a GIA Ex, and then apply the HCA to it. YOU DO NOT USE HCA for AGS0 stones.
https://www.pricescope.com/wiki/diamonds/holloway-cut-advisor
The HCA is a rejection tool. Not a selection tool. It uses 4 data points to make a rudimentary call on how the diamond may perform. It's only goal is to weed out stones that have angles that do not normally result in ideal light performance.
If the diamond passes then you know that you are in the right zone in terms of angles for light performance. Under 2 is a pass. Under 2.5-2.1 is a maybe. 2.6 and over is a no. No score 2 and under is better than any other.
Is that enough? Not really.
So what you need is a way to check actual light performance of your actual stone.
That's what an idealscope image does. https://www.pricescope.com/wiki/diamonds/firescope-idealscope
It shows you how and wear your diamond is reflecting light, how well it is going at it, and where you are losing light return. That is why you won't see us recommending Blue Nile, as they do not provide idealscope images for their diamonds. James Allen, BGD, GOG, ERD, HPD and WF do.

The Idealscope is the 'selection tool'. Not the HCA. The HCA is just used narrow and predict which stones will have a good idealscope image.
So yes, with a GIA stone you need the idealscope images. Or you can buy an idealscope yourself and take it in to the jeweler you are working with to check the stones yourself. Or if you have a good return policy (full refund minimum 7 days) then you can buy the idealscope, buy the stone, and do it at home.


Now if you want to skip all that... stick to AGS0 stones and then all you have to do is pick color and clarity and you know you have a great performing diamond. Because AGS has already done the checking for you. That's why they trade at a premium.

 

[Gypsy]

Re: Which one?== 2+ct Diamonds==Advice Welcomed==Engagement

Of all of them the first one is best.

That said. You need an idealscope image.