This is a comparison of 1ct ideal cut, F color, VS1 clarity Radiant cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $5080

White Flash: $5907

Abazias: $6415

Blue Nile: $6125

Brilliant Earth: $6240

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.