Boucheron Serpent Bohème necklace XS design in white gold, aquaprase and diamond

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

The "pear cut", is a cut (i.e. the way the stone is cut) in the shape of a drop of water, very refined and feminine, which sublimates the beauty of the gem.

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.