This is a comparison of 1.5ct ideal cut, D color, VVS2 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $32,030

White Flash: $35,116

Abazias: $35,751

Blue Nile: $35,784

Brilliant Earth: $35,100

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.