Does poh Kim sell super ideal cut diamonds? Or only JP does? I understand for scope-wise super ideal and triple excellence cut both looks roughly the same (to me at least).
“Triple ex=good” is actually not true because a triple ex diamond can still have significant light leakage and dark ring of death under the table. Which is pretty bad. This is a myth that is heavily emphasized by typical jewelry stores, and it is a super big lie.
So what we want to compare is triple ex+HCA below 2 +aset Images look good = our definition of ideal cut diamond. And we call it “ideal cut diamond” vs. JP’s precision-cut, super ideal cut diamond.
Poh Kim does not sell super ideal cut diamond. They sell maybe ideal cut. They do have hearts and arrows scope and aset scope so you can check for light leakage. Libra84 on pages 15-17 of this thread shared his experience w Poh Kim. He said he was shown the hearts and arrows and aset. From the picture, the hearts and arrows were not totally symmetrical if you are looking for very symmetrical (JP’s were more symmetrical if I’m not wrong). He ended buying a diamond from Poh Kim at a good price and two of my other friends have also done so.
Still, you can’t compare as JP’s ideal cut selection is more stringent for really top quality w higher prices (note that they carry super ideal cut AND ideal cut) while Poh Kim (ideal cut but different standards) is attractive to customers based on price+decent quality.
So in diamonds, in reputable stores you do pay for what you get. Except in mall stores those are totally overpriced for the bad quality and cheat based on lack of customer’s knowledge.