All diamonds featured in the collections are subject to a double verification process. They meet the internationally recognized “4 Cs” criteria, established by the Gemological Institute of America (GIA), which determine their quality based on color, clarity, cut, and carat weight. In keeping with the Maison’s tradition of excellence, only the highest grades are chosen: D to F for color and IF to VVS for clarity. After this first step, which allows for an objective evaluation, comes an in-depth inspection by the Van Cleef & Arpels experts.

The Stone Department examines the gems with the characteristic high standards and taste of the Maison. The quality of pavé-set diamonds is systematically checked with a 10x magnifying glass as part of a rigorous internal process, while each center stone is carefully examined to assess its beauty, the vitality that enlivens it, and the elegance of its cut. Many unique characteristics distinguish one gem from another.