This is a comparison of 0.8ct ideal cut, D color, VS1 clarity round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $5510

White Flash: $6265

Abazias: $6169

Blue Nile: $6127

Brilliant Earth: $5695

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.