The GIA 4Cs standard (Gemological Institute of America) is a global diamond quality grading system, consisting of Carat (Weight), Cut, Color, and Clarity.
The four factors in the 4Cs help identify, compare, and value diamonds objectively, transparently, and accurately, reflecting the rarity, value, and natural beauty of each stone. The 4Cs standard is also the foundation of GIA certification, ensuring diamonds have clear origins and scientifically verified quality.
