This is a comparison of 1ct ideal cut, E color, SI1 clarity Princess cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $5150

White Flash: $5901

Abazias: $5798

Blue Nile: $5843

Brilliant Earth: N/A

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.