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

James Allen: $4630

White Flash: $5391

Abazias: $5663

Blue Nile: $5873

Brilliant Earth: $4980

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.