Opinions needed on diamond and setting!!!

[thomaslongmore]

I think I''m almost done... I have selected a gog diamond along with a ritani setting (see links).
setting - http://www.ritani.com/products/view/437/in_collection/1
diamond - http://www.goodoldgold.com/diamond/2421/

Should I consider going with the diamond below... I''m not sure why it is more expensive. Could someone help me with that?
http://www.goodoldgold.com/diamond/4786/

I don''t know anything about ritani... what''s the overall concensus on quality and price?

Anyone see a diamond on this page that stands out... I''m such a rookie when it comes to this. Please Help!!! http://www.goodoldgold.com/diamondResults.php?shape=16&ctMin=1&ctMax=1.5&clarity=127&color=15&resultsColumns=268435471

YOUR OPINIONS AND SUGGESTIONS ARE GREATLY APPRECIATED.. THANKS!!!