This is a comparison of 1.7ct ideal cut, E color, VS1 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $27,560

White Flash: $29,477

Abazias: $29,564

Blue Nile: $29,212

Brilliant Earth: $30,615

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.