This is a comparison of 0.6ct ideal cut, E color, VVS1 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $3640

White Flash: $4545

Abazias: $3878

Blue Nile: $4550

Brilliant Earth: $3965

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.