No matter which shape is selected, it's cutting must be evaluated. Differences in cutting can effect a diamond's beauty, durability, and cost, the latter by as much as 50 percent, or more. Proper cutting and proportioning release the full beauty that sets diamond apart from all other gems. A stone with excellent make will be exciting, while a stone with a poor make will look lifeless, it will lack the sparkle and personality we identify with a diamond. Differences in cutting can also effect the durability of a diamond and make it more susceptible to breaking and chipping.
Fine cutting requires skill and experience and takes more time.
For all these reasons, a well cut diamond commands a premium and will cost much more than one that is cut poorly. When buying a diamond, be sure to ask about the cut, color, clarity and carat weight. Get the facts, in writing, and compare the diamonds you are considering. Finally have the stone examined by a qualified gemologist-appraiser to verify that it is as represented. But if you are told that the color is natural it should be put in writing.