I really think you just have to look at the stone you're thinking you would like to purchase. I personally preferred that my engagement ring had a steely, icy white diamond, and it does. But I know just as many women (maybe more?) who really prefer a little warmth like in a G, H, I stone. Honestly, when you're talking about engagement diamonds, you want the one that speaks to you - not the one that has a perfect pedigree.