4Cs of a Lab-Grown Diamond

Let's delve deeper into each of the 4Cs of lab-grown diamonds


  • Carat: Carat weight is a measure of the size of the diamond. One carat is equal to 200 milligrams or 0.2 grams. Larger diamonds are generally rarer and more valuable, regardless of whether they are mined or lab-grown. However, it's essential to remember that carat weight alone doesn't determine a diamond's value; other factors such as cut, clarity, and colour also play significant roles.


  • Clarity: Clarity refers to the presence or absence of internal characteristics (inclusions) and external blemishes (blemishes) within the diamond. These imperfections can affect the diamond's brilliance and transparency. Clarity grades typically range from "Flawless" (no inclusions or blemishes visible under 10x magnification) to "Included" (inclusions and blemishes visible to the naked eye). Lab-grown diamonds, like mined diamonds, undergo grading for clarity using similar criteria.


  • Colour: The colour of a diamond is graded on a scale from D (colourless) to Z (light yellow or brown). Colourless diamonds (grades D-F) are considered the most valuable because they allow the maximum amount of light to pass through, resulting in a brilliant appearance. However, some lab-grown diamonds may exhibit fancy colours, such as pink, blue, or yellow, which are valued for their rarity and uniqueness. These fancy coloured lab-grown diamonds are often graded using different colour scales tailored to coloured diamonds. (Click here to explore more)- *a link to redirect to coloured diamonds page.


  • Cut: The cut of a diamond refers to its proportions, symmetry, and polish, which directly influence its brilliance, fire, and scintillation. A well-cut diamond reflects light internally and disperses it through the crown, creating sparkle and enhancing its overall appearance. The cut is evaluated based on factors such as table size, crown height and angle, pavilion depth and angle, girdle thickness, and overall symmetry. Lab-grown diamonds are cut using advanced technology and precision techniques to maximize their optical properties and beauty.


  • Understanding the 4Cs is crucial when choosing a lab-grown diamond, as they help assess its quality and value. Each C interacts with the others to determine the overall beauty and desirability of the diamond.