This is a comparison of 1.3ct ideal cut, G color, VVS1 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $14,730

White Flash: $16,310

Abazias: $16,885

Blue Nile: $16,405

Brilliant Earth: $19,670

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.