This is a comparison of 1.60ct ideal cut, H color, VS1 clarity Princess cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $9360

White Flash: $9774

Brilliant Earth: $10,120

Abazias: $10,190

Blue Nile: $10,485

These diamonds are independently inspected and graded by GIA/AGS, which means you can trust their quality. The quality of these diamonds is identical--the only thing that is different is the price.