Hello, well I know the setting I want for my princess cut diamond, but am having a problem. I found it at blue nile for 975.00 for a princess cut channel set diamonds of .50 carat, but since I don''t think I am buying my diamond there, I am buying it from whiteflash, they have the same one, but want 1450 for it.... That is almost 500 more. What should I do? Maybe just find a signature cut diamond the same as I found from white flash? Or is there other good setting sites?