How the diamond studs has been cut, polished and to what proportions and symmetry are important, as these factors determine the life, brilliance and dispersion of the diamond store. If the cutting factors fall below standard the appearance of the diamond store is adversely affected.
Extremely subtle color differences can be very important to determine rarity of a GIA Certified Diamonds, but are never a critical factor in beauty.
All beautiful ideal cut comes with a grading Certificate or Report from an internationally recognised, independent Gemmological Laboratory.