a flawless diamond studs 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.
After the GIA Certified Diamond have been found they goes through many processes before they becomes the finished product we are familiar with.
A engagement ring is crystal made up of 99.95% pure carbon atoms arranged in an isometric, or cubic, crystal arrangement.