educational advice please - comparing three sets for studs

[TrousseauHorse]

Good morning! I am still working on putting together a pair of ~1.0ctw studs, in the H-I, SI1-2 range. I had these two pairs suggested to me and I wanted to get some outside opinions as to why they might have suggested these two pairs? I want to understand what the differences are so I can be more educated for the future (give a man a fish, etc.)

PAIR ONE

http://www.briangavindiamonds.com/diamonds/diamond-details/0.506-i-si1-round-diamond-ags-c-104078362050
http://www.briangavindiamonds.com/diamonds/diamond-details/0.535-i-si1-round-diamond-ags-c-104078362053

The measurement % numbers look similar. Would one of them being .506 ct (5.11 x 5.13 x 3.17) vs .535 ct (5.20 x 5.23 x 3.22) affect anything other than price? Is that a noticeable difference visually?

PAIR TWO

http://www.briangavindiamonds.com/diamonds/diamond-details/0.575-h-si1-round-diamond-ags-c-104073888039
http://www.briangavindiamonds.com/diamonds/diamond-details/0.574-h-si1-round-diamond-ags-104074587012

As far as size, they seem more similar .575 ct (5.31 x 5.37 x 3.2 and .574 ct (5.33 x 5.38 x 3.27) The measurement % numbers don't look as equal though, but I'm not sure exactly how that would affect the way they look?

PAIR THREE - the ones I was originally looking at on my own

http://www.briangavindiamonds.com/diamond_pair_comparisions/compared_diamond_details/BFG-16843/BFG-16844

These are .500 I, SI2 (5.08 x 5.11 x 3.15) and .500 I, SI1 (5.06 x 5.11 x 3.15). I guess the main difference is these are Advance Selection, so maybe they were trying to steer me towards something they already have in their inventory?

Thanks in advance!

 

[TrousseauHorse]

Re: educational advice please - comparing three sets for stu

I'm still trying to make a decision if anyone has time to help. Thanks!