Necklace Elsa Les Poinçonneurs in yellow and white gold and diamonds

The 4 criteria of evaluation of the diamond are defined by the "4 Cs":

- Cut (its size, i.e. the shape that the cutter has given it by creating facets)

- Clarity (its purity)

- Color (its color, ranging from D exceptional white + to Z tinted)

- Carat (its weight)

18k yellow gold (750 thousandths) is 75% pure gold, alloyed with other precious metals to make it workable. It is the most beautiful quality of gold that can be found in jewelry.

Also known as 18k gold.

The 4 criteria of evaluation of the diamond are defined in English as the "4 Cs":

- Cut (its size, i.e. the shape given to it by the cutter by creating facets)

- Clarity (its purity, defined by the inclusions with which the stone is endowed, visible with a magnifying glass x10)

- Color (ranging from D, exceptional white +, to Z, tinted)

- Carat (its weight)

The "round cut", also called "brilliant cut" is the cut (i.e. the way the stone is cut) considered to be of ideal proportions to maximize brilliance and fire.