^ Hmm, while I understand that POV, I disagree. Almost no diamond is "perfect", and to find a perfect stone on someone's hand is even more rare. The vast majority of diamonds are NOT perfect, and the vast majority of people aren't even looking for a perfect stone. I know of one D, IF stone on this board, and perhaps there are others I cannot remember (I am sure there are, as there are so many posted), but looking through the photo posts, all the "imperfect" stones are gorgeous. Indeed, some people intentionally shop for warmer stones or go for eye-clean SI stones for a better price, and I think those are perfectly legitimate choices.
Anyway, so I disagree with the idea that if a diamond is not perfect it is "just a stone". I think many people have heart-stoppingly beautiful diamonds that will be heirlooms, perfect or not.