The cushion cut diamond was one of the most popular cuts of diamonds ever. For more than 70 years from 1830 to the turn of the century this was how diamonds were cut. Sometimes referred to as a "pillow cut", the cushion cut has an open culet (the bottom of the diamond) and a rectangular to square shape with rounded corners. The beauty of a cushion cut is the depth of the diamond. The facets allow the eye to travel into the diamond. It is a calmer more soothing cut than a modern cut.