This is a comparison of 0.75ct ideal cut, F color, VVS2 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $5150

White Flash: $5413

Abazias: $6038

Blue Nile: $6237

Brilliant Earth: $6810

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.