This is a comparison of 0.75ct ideal cut, E color, VS2 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $4870

White Flash: $5029

Abazias: $5655

Blue Nile: $5468

Brilliant Earth: $5880

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.