rockshopping555
Rough_Rock
- Joined
- Mar 19, 2012
- Messages
- 7
Re: GIA Excellent cut does not grade well in HCA ***help nee
Again being a newbie to diamonds, all this info is overwhelming.
If I had not stumbled on to the HCA tool, I would have already purchased that diamond and perhaps been very satisfied. It looked great(again my eyes are not trained for this), and I would have the GIA cert which from what I've been told, is pretty much the best assurance you can have.
Coming into this, I was told if GIA or AGS rate a cut as excellent, I would have nothing to worry about. Yes some GIA excellent are better than others, but wasn't this category listed by GIA to weed out the duds and focus on what the stone looks like to the eye? Shouldn't there be only a certain percentage of variance?
From an article I read on another website, some poor HCA scores which do not grade favorably look better to the eye than those with scores in the 1-2 range.
So from what I understand, GIA scores are calculated not only on equations and angles/percentages, but how the stone looks/performs to the eye. If this is true then wouldn't the HCA be more useful in the case of a non certified stone, or one with certification from EGL or another less-regarded lab?
I think I have enough info to make an educated decision at this point... who knows!!?
Again being a newbie to diamonds, all this info is overwhelming.
If I had not stumbled on to the HCA tool, I would have already purchased that diamond and perhaps been very satisfied. It looked great(again my eyes are not trained for this), and I would have the GIA cert which from what I've been told, is pretty much the best assurance you can have.
Coming into this, I was told if GIA or AGS rate a cut as excellent, I would have nothing to worry about. Yes some GIA excellent are better than others, but wasn't this category listed by GIA to weed out the duds and focus on what the stone looks like to the eye? Shouldn't there be only a certain percentage of variance?
From an article I read on another website, some poor HCA scores which do not grade favorably look better to the eye than those with scores in the 1-2 range.
So from what I understand, GIA scores are calculated not only on equations and angles/percentages, but how the stone looks/performs to the eye. If this is true then wouldn't the HCA be more useful in the case of a non certified stone, or one with certification from EGL or another less-regarded lab?
I think I have enough info to make an educated decision at this point... who knows!!?