Les 4C des diamants de laboratoire : qu’est-ce qui fait leur éclat ?

The 4Cs of lab-grown diamonds: what makes them so brilliant?

on Nov 06 2025
Table of Contents

    When purchasing a diamond, you have likely heard of the “4Cs”: Cut, Color, Clarity, and Carat. These four criteria are the primary standards used to assess the quality and value of a diamond, whether natural or lab-grown. But what do the 4Cs really mean for lab-grown diamonds?

    Cut – Cut determines how a diamond reflects light. A well-cut diamond delivers maximum brilliance and sparkle.
    Color – Lab-grown diamonds are available in a range of colors, from colorless to slightly yellow. In general, the less color a diamond shows, the higher its value.
    Clarity – Clarity refers to the presence of inclusions or imperfections. Lab-grown diamonds often exhibit higher clarity, as they are created under carefully controlled conditions.
    Carat – Carat refers to the diamond’s weight and therefore its size. A higher carat weight generally corresponds to a higher price.

    Diamelys lab-grown diamonds are evaluated according to the same 4Cs, ensuring exceptional quality at a fraction of the price of mined diamonds. Discover how the 4Cs influence the beauty and value of your lab-grown diamond, and make an informed choice to find the perfect piece.