This is a comparison of 1.25ct ideal cut, F color, VS1 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $14,100

White Flash: $15,754

Abazias: $16,852

Blue Nile: $17,033

Brilliant Earth: $18,140

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.