Size:7 Material: 33 round diamonds, weighing 0.25 carats 18k yellow gold, white gold, rose gold and brown PVD Product Description: This Quatre Classique series ring uses Boucheron's classic design elements and is regarded as a signature work of the family. The three-color gold and brown PVD electroplating layers and delicate diamond lines complement each other and decorate me freely. The bold use of materials creates a sharp contrast and shows a unique style.