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

James Allen: $5820

White Flash: $6289

Abazias: $6437

Blue Nile: $7008

Brilliant Earth: $6360

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.