This is a comparison of 1.5ct ideal cut, H color, VS2 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $13,870

White Flash: $14,943

Abazias: $15,082

Blue Nile: $15,205

Brilliant Earth: $15,015

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.