The 4Cs

A Fuster diamond is masterfully crafted to capture and reflect light with exceptional brilliance, fire, and radiance. Guided by an unwavering commitment to excellence, the Maison’s distinct creative vision is rooted in unparalleled expertise and artistry. Every diamond is meticulously selected and evaluated according to the rigorous standards established by the Gemological Institute of America (GIA), known as the 4Cs—Cut, Colour, Clarity, and Carat. Through this dedication, Fuster ensures that each GIA-certified diamond meets the highest benchmarks of beauty and rarity.

Diamond Cut

The cut and shape of a diamond are essential to its beauty, directly influencing its brilliance, fire, and overall allure. While the shape defines the silhouette of the stone, the cut determines how light is reflected and refracted, ultimately revealing the diamond’s radiance and lustre.

At Fuster Legacy, our expert artisans are among the finest in the world. With uncompromising precision, they craft each diamond with  properfectly balanced portions and symmetrical, mirror-like facets, ensuring every stone captures and reflects light with extraordinary intensity. A masterfully cut diamond is not only a marvel of craftsmanship but a timeless expression of elegance.

Diamond Carat

Carat weight is a key measure of a diamond’s size and mass, and one of the four essential pillars that define a diamond’s quality—alongside cut, colour, and clarity, collectively known as the 4Cs.

A carat is a unit of weight equivalent to 0.2 grams. Whether exquisitely proportioned diamonds under one carat or exceptional stones exceeding 100 carats, each diamond at Fuster Legacy is selected and crafted to the highest standards—celebrated for its brilliance, balance, and rarity.

Diamond Colour

When evaluating a diamond, colour is a defining attribute of its beauty and value.
The brilliance of a white diamond is accentuated by the absence of colour—its radiance amplified when the stone is completely, or nearly completely, colourless.

White diamonds are graded on an international scale from D to Z, with D representing the pinnacle of colourless purity. At Fuster Legacy, we proudly select diamonds that typically range between D and G—among the rarest and most coveted grades—ensuring that every stone reflects our uncompromising standards of excellence and natural beauty.

Diamond Clarity

Clarity is one of the fundamental 4Cs of diamond quality, evaluating the number, size, position, and colour of inclusions and surface blemishes within a diamond. It plays a vital role in determining the overall beauty and rarity of a stone.

At Fuster, our diamonds are exceptionally pure. Many are graded Flawless, while others exhibit only microscopic inclusions that remain entirely invisible to the naked eye—preserving the brilliance, transparency, and refined elegance expected from a Fuster jewel.