i stumbled upon this site and found wonderful info that i never knew. I'm looking at a few sites for loose diamonds to put on an engagement ring. trying to keep under 20 preferably 15 or less and 1.5ct with G or better. since i really cant tell how to get the best for my buck. I'd like some help. Here are some diamonds i'm looking at but would love feedback on how to pick it or narrow down what to really look for. i've done the HCA tool, ags0, and and trying to understand the idealscope and hearts arrow pictures. Here are the links and thanks in advance.
http://www.bluenile.com/build-your-own-ring/diamond-details/LD01928871
http://www.briangavindiamonds.com/diamonds/diamond-details/1.318-g-vvs2-round-diamond-ags-104054185004#!prettyPhoto[gallery2]/4/
http://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3051871.htm
http://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3208287.htm
http://www.ritani.com/diamonds/round-diamond-1-54-Carat-G-color-GIA-certified/D-3V9R55
Also she would prefer these style rings and any input on where to go to replicate them would be great as well
http://www.bluenile.com/build-your-own-ring/diamond-details/LD01928871
http://www.briangavindiamonds.com/diamonds/diamond-details/1.318-g-vvs2-round-diamond-ags-104054185004#!prettyPhoto[gallery2]/4/
http://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3051871.htm
http://www.whiteflash.com/loose-diamonds/round-cut-loose-diamond-3208287.htm
http://www.ritani.com/diamonds/round-diamond-1-54-Carat-G-color-GIA-certified/D-3V9R55
Also she would prefer these style rings and any input on where to go to replicate them would be great as well