This is a comparison of 1.25ct ideal cut, F color, SI1 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $10,050

White Flash: $10,857

Abazias: $11,355

Blue Nile: $11,487

Brilliant Earth: $12,710

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.