This is a comparison of 1.2ct ideal cut, E color, VS1 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $14,390

White Flash: $15,531

Abazias: $15,257

Blue Nile: $15,799

Brilliant Earth: $15,985

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.