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

James Allen: $15,460

White Flash: $18,060

Abazias: $17,991

Blue Nile: $18,408

Brilliant Earth: $18,690

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.