The 4C Diamond Quality standard is the globally accepted framework for assessing the quality and value of every diamond worldwide.
Established by the GIA, it establishes a universal language for diamond quality, giving you total transparency and certainty when choosing your perfect stone.
Diamond color is graded on a scale from D (colorless) to Z (light yellow or brown) by the GIA.
The most valuable white diamonds are completely colorless, as they allow maximum light transmission for brilliant sparkle. Additionally, natural fancy color diamonds (such as blue, pink, and yellow) are prized for their exceptional rarity.
The cut is arguably the most vital of the 4Cs, as it directly governs how a diamond interacts with light to create fire, brilliance, and scintillation.
A precisely cut diamond reflects light internally from facet to facet and projects it through the crown. Cut quality is graded from Excellent to Poor.
Clarity assesses the presence of microscopic internal inclusions and surface blemishes formed during the diamond's natural crystallization.
Graded under 10x magnification, the clarity scale ranges from Flawless (FL) to Included (I). Eye-clean diamonds deliver maximum brilliance without paying a premium for invisible perfection.
Carat is the standard metric unit measuring a diamond's weight, where one metric carat equals 200 milligrams (100 points).
While heavier diamonds are rarer, carat weight should be evaluated alongside Cut, Clarity, and Color. A well-proportioned diamond of moderate carat often displays more fire and presence than a larger stone with lower grades.
