This is a comparison of 1ct ideal cut, E color, VVS2 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $11,990

White Flash: $13,848

Abazias: $14,373

Blue Nile: $13,943

Brilliant Earth: $15,190

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.