This is a comparison of 0.6ct ideal cut, E color, VS2 clarity Round cut diamonds (click the dollar amount to be taken directly to the diamond):

James Allen: $2700

White Flash: $2818

Abazias: $3064

Blue Nile: $2801

Brilliant Earth: $2990

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.