Cushion cut lab engineered diamonds have a rectangular or square shape but different from princess cut as they have rounded corners. These lab engineered diamond shape is popular for it enticing vintage charm. These cuts have bigger surface area and allow more light to come in, giving it a much more lustre. The facets of this cut is shaped and arranged such that it enhances the brilliance of the diamond. These man made diamonds cut is less expensive as compared to round cut diamonds.