How much of a real-life light-performance difference will there be between absolutely perfect hearts vs close-to perfect hearts? Is it a "mind clean" issue (i.e. perfect hearts as humanly possible:near-perfect hearts :: IF:VVS1)? Can lay-people and/or experts tell the difference just from looking at them with the un-aided eye?
I'll use some GOG diamonds in their Hearts and Arrows/Ideal inventory as examples because they're the only site that actually shows H&A images for diamonds that just missed.
Close to it (GOG premiums):
http://www.goodoldgold.com/diamond/10945/
http://www.goodoldgold.com/diamond/10944/
Vs perfect hearts like this (GOG superior... and similar hearts and arrows at WF, BG, Crafted by Infinity):
http://www.goodoldgold.com/diamond/9144/
No need to comment on these specific diamonds, but I linked them to give parameters of what I'm talking about.
I'll use some GOG diamonds in their Hearts and Arrows/Ideal inventory as examples because they're the only site that actually shows H&A images for diamonds that just missed.
Close to it (GOG premiums):
http://www.goodoldgold.com/diamond/10945/
http://www.goodoldgold.com/diamond/10944/
Vs perfect hearts like this (GOG superior... and similar hearts and arrows at WF, BG, Crafted by Infinity):
http://www.goodoldgold.com/diamond/9144/
No need to comment on these specific diamonds, but I linked them to give parameters of what I'm talking about.