This is a comparison of 0.5ct ideal cut, E color, VS2 clarity Princess cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $1060

White Flash: $1160

Abazias: $1229

Blue Nile: $1468

Brilliant Earth: $1870

These diamonds are independently inspected and graded by GIA/AGS, which means you can trust their quality. For everything you need to know about buying engagement rings online, please visit http://howiboughtthering.com.