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: $4370

White Flash: $5142

Abazias: $5268

Blue Nile: $4966

Brilliant Earth: $4535

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.