This is a comparison of 1.7ct ideal cut, F color, VS2 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $22,020

White Flash: $23,310

Abazias: $24,774

Blue Nile: $24,026

Brilliant Earth: $28,340

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.