Out of all the 4Cs, cut has the greatest impact on a diamond’s sparkle and brilliance. It refers to how well a diamond’s facets interact with light—affecting its brightness (white light), fire (rainbow flashes), and scintillation (sparkle as the diamond moves).

Even a flawless, colorless diamond can appear dull if it’s poorly cut. On the flip side, a well-cut diamond can appear larger and more brilliant—even at a lower color or clarity grade.

Cut grades range from:

  • Excellent – Maximum brilliance and light performance
  • Very Good – Exceptional sparkle, great value
  • Good – Still visually appealing with some light loss
  • Fair/Poor – Noticeable dullness and reduced light return

At Diamond2Deal, we prioritize expertly cut diamonds in every shape—from round and oval to emerald and cushion—so your piece dazzles from every angle.