This is a comparison of 0.8ct ideal cut, E color, VVS2 clarity Princess cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $3930

White Flash: $3965

Abazias: $4238

Blue Nile: $5349

Brilliant Earth: N/A

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.