After a princess cut diamond has been found it goes through many processes before it becomes the finished product we are familiar with.
diamonds measured by carat weight. Normally, people want the biggest antique engagement ring they can get. But technically, bigger sized antique engagement ring usually suffer in quality, such as a loss in brilliance.
a flawless diamond stud is no more beautiful to the unaided human eye than a grade in the middle of the scale. Once again, extremely subtle differences in clarity are very important to determine rarity, but only affect beauty when in the very low end of the scale.