This is a comparison of 0.90ct ideal cut, E color, VS1 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $7230

White Flash: $7799

Abazias: $7372

Blue Nile: $7760

Brilliant Earth: $7585

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.