Aflex, you are truly a moron. I own many diamonds, ranging from D color to K color (and also some Y-Z's) and from flawless to I1. Beyond that, I have had the pleasure of examining hundreds of diamonds of all cuts, colors, carats, etc. For you to make such a blanket statement (i.e. all SI's are shit) shows your ignorance. Any reputable jeweler (that is not just trying to make the largest commission possible) will tell you that there are certainly some stones in that range that will appear eye-clean (not loupe-clean; EYE-clean). Perhaps you simply have not had the experience that I have; I don't know the reason for your ignorance. If you honestly think that a stone such as this one:
http://www.whiteflash.com/hearts_arr...nd-1177142.htm would NOT look phenomenal in a solitaire ring then you really don't know much. Or perhaps you should look at this stone: http://www.pricescope.com/idealbb/view.asp?topicID=26190....it's a <gasp> J SI2 set in platinum!!!!!! A truly stunning stone that ANY girl would be proud to wear.