This is a comparison of 1.2ct ideal cut, D color, VS2 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $16,830

White Flash: N/A

Abazias: $17,483

Blue Nile: $17,783

Brilliant Earth: $22,030

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.