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: $14,360

White Flash: $16,914

Abazias: $17,048

Blue Nile: $17,167

Brilliant Earth: $19,280

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.