This is a comparison of 1ct ideal cut, G color, VS1 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $8820

White Flash: $10,194

Abazias: $10,287

Blue Nile: $10,053

Brilliant Earth: $10,175

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.