This is a comparison of 1.3ct ideal cut, G color, VS2 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $12,130

White Flash: $13,655

Abazias: $14,735

Blue Nile: $13,922

Brilliant Earth: $13,450

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.