This is a comparison of 0.6ct ideal cut, D color, VS1 clarity Princess cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $1610

White Flash: $2305

Abazias: $1629

Blue Nile: $2178

Brilliant Earth: $2590

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.