Diamonds are renowned for their ability to transmit light and sparkle so intensely. We often think of a diamond’s cut as shape (round, emerald, pear), but a diamond’s cut grade is really about how well a diamond’s facets interact with light.
The quality of cut is crucial to the diamond’s final beauty and value. And of all the 4Cs, it is the most complex and technically difficult to analyze.
Diamond Cut | GIA Video
GIA created the 4Cs (Color, Clarity, Cut, and Carat Weight) over 50 years ago as a universal method for establishing the quality of any diamond, anywhere in the world. The 4Cs mean two very important things: diamond quality can be communicated in a universal language, and diamond-buying consumers can know exactly what they are about to purchase.