This is a comparison of 1.4ct ideal cut, F color, VVS1 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $21,610

White Flash: $21,806

Abazias: $22,357

Blue Nile: $24,513

Brilliant Earth: $23,290

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.