This is a comparison of 0.5ct ideal cut, H color, VVS2 clarity Princess cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $910

White Flash: $1049

Abazias: $1169

Blue Nile: $1300

Brilliant Earth: $1740

These diamonds are independently inspected and graded by GIA/AGS, which means you can trust their quality. The quality of these diamonds is identical--the only thing that is different is the price. For everything you need to know about buying engagement rings online, please visit http://howiboughtthering.com.