Van Cleef & Arpels have created the Pierre de Couleur Collection, a group of stunning engagement rings. All of the pieces in this collection include platinum bands and diamonds in addition to rubies, sapphires, or emeralds. The gemstones each weigh at least one carat and feature classic cuts such as a pear-shaped ruby, an emerald-cut emerald, and a cushion-cut sapphire. This collection proves that Van Cleef & Arpels is once again redefining tradition.