Cognac diamonds can be really really pretty. Surprisingly, they send out colors in the green and red range. This is one such diamond. It is, at first glance, a square brown stone but it is so much more. This cognac princess cut diamond is about 1 carat in weight. We put it onto a diagonal, in a hand-carved 22k yellow gold band. Super interesting from all angles- geometry class helped construct this ring. Prices range from 1900- to 5,500 depending on stones and materials.