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Thoughts on this G VS2

redroze

Shiny_Rock
Joined
Jul 15, 2013
Messages
405
Any thoughts? It looks good on all fronts to me but I've no idea what to look for with AGS0. Do I still run it through HCA or no?

Weird, it gets a 1.4 HCA, but Excellent on light return and only Very Good on fire, scintillation and spread. Can that be right?

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Looks like a great cut there are some disclaimers you might want to read about the holloway cut advisor , AGS uses ASET technology which is very similiar to HCA , I would use the AGS grade over the Holloway number, HCA is free and good to use to weed out badly cut stones
 
For example the spread is great , most 1.5 carats are 7.3mm and this is 7.45 … For some reason HCA doesnt calculate spread well you have to do it manually.
 
AGS 0 doesn't require the use of HCA -- they are already graded for optimal performance. :))
 
It's scoring only a 'very good' on fire and scintillation because of the 41 degree pavilion angle. Would have been better if it was 40.8 or 40.9. If you are really picky and want the best of the best, I would pass. If you absolutely love the stone, by all means get it! It will still be a beauty as it's AGS000.
 
Laila619|1394148393|3628932 said:
It's scoring only a 'very good' on fire and scintillation because of the 41 degree pavilion angle. Would have been better if it was 40.8 or 40.9. If you are really picky and want the best of the best, I would pass. If you absolutely love the stone, by all means get it! It will still be a beauty as it's AGS000.

From a quick search it looks like the 41 pavilion angle is not an issue when combined with a crown under 34.5.
https://www.pricescope.com/communit...erence-between-34-2-40-8-and-34-0-41-0.11202/
 
redroze|1394149022|3628945 said:
Laila619|1394148393|3628932 said:
It's scoring only a 'very good' on fire and scintillation because of the 41 degree pavilion angle. Would have been better if it was 40.8 or 40.9. If you are really picky and want the best of the best, I would pass. If you absolutely love the stone, by all means get it! It will still be a beauty as it's AGS000.

From a quick search it looks like the 41 pavilion angle is not an issue when combined with a crown under 34.5.
https://www.pricescope.com/communit...erence-between-34-2-40-8-and-34-0-41-0.11202/

It all depends what 'flavor' of stone you want. For me personally, I like a steeper crown and a shallower pav. There is nothing 'wrong' per se with a 41 pav angle when paired with the right crown. I just do not like them personally. You might love the look though. Best to see in person! The HCA favors stones with shallower pavs and dings stones with pavs around 41 or more.
 
As I understand it, HCA is a tool for the elimination of diamonds. It weedis out undesirables that score > 2. . It doesn't work as well as an evaluation tool and it is meaningless when applied to an AGS 000 which has already been evaluated for light performance.
 
John Pollard|1392926535|3619475 said:
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.
 
Very helpful thanks! I don't have the luxury of seeing it in person, so I guess I'll rely on the score and info I'm given, and ERd's return policy. I know the custom setting is not returnable but worst case, I can exchange for another diamond.
 
Since you're really serious about this one, just ask the vendor to send you a video of the diamond as they move it around in a variety of lighting conditions.

They can videotape it in ambient and natural lighting as well as spot lighting, so you can at least get a look at the stone in "real life" conditions. I personally wouldn't be comfortable buying a diamond without that (if I can't see it in person).
 
Great advice, I'll ask for a video.
 
Stunning!!!!
 
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