This is a comparison of 0.8ct ideal cut, E color, VS1 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $4580

White Flash: $5135

Abazias: $5324

Blue Nile: $5360

Brilliant Earth: $5615

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.