This is a comparison of 1ct ideal cut, H color, VS2 clarity Cushion cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $3800

White Flash: $4467

Abazias: $4426

Blue Nile: $4140

Brilliant Earth: N/A

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.