diamond details

The 4 C’s

The 4 C’s of diamonds are internationally recognized as the key factors for evaluating and determining a diamond’s quality and value. While each C plays a crucial role, their order of importance can be subjective, depending on personal preferences and the purpose of the diamonds purchase.


The cut of a diamond is widely considered the most important factor in determining its overall beauty and brilliance. A well-cut diamond reflects light in a way that maximizes its sparkle and fire. The cut quality is evaluated based on factors such as proportions, symmetry, and polish. A well-cut diamond enhances the stone’s visual appeal, making it highly desirable.

diamond clarity


Clarity refers to the absence of internal flaws, known as inclusions, and external blemishes in a diamond. Clarity is significant because it directly impacts the stone’s brilliance and transparency. The Gemological Institute of America (GIA) grades diamonds on a clarity scale, ranging from Flawless (no inclusions or blemishes visible under 10x magnification) to Included (inclusions visible to the naked eye). A higher clarity grade indicates a rarer and more valuable diamond.


The colour grade of a diamond refers to its lack of colour, with the highest grade being D (colourless) and the lowest being Z (yellow or brown). Colourless diamonds allow more light to pass through, enhancing their brilliance. While subtle colour differences may be challenging to detect, they can significantly impact a diamond’s value. The ideal goal is to select a diamond with the least amount of colour within a desired budget.

diamond colour
diamond carat


Carat weight is a measure of a diamond’s size and weight. Although carat weight is often associated with a diamond’s value and perceived importance, it is the least influential factor among the 4 C’s in terms of a diamond’s overall beauty and quality. It is crucial to remember that carat weight alone does not determine a diamond’s worth; the other three C’s play a significant role in evaluating its quality. It is essential to strike a balance between carat weight and the other factors to find the perfect diamond for one’s preferences and budget.

It’s important to note that while the 4 C’s provide a useful framework, personal preferences and individual priorities can vary. Ultimately, understanding the 4 C’s empowers consumers to make informed decisions when selecting a diamond that aligns with their unique preferences and budget. That is why at Sand & Stone, our team is here to guide you and assist with handpicking your ultimate stone.