Few houses have used color as decisively as Bvlgari. Cabochon stones are central to that identity - their smooth surfaces and saturated hues emphasize color and form over brilliance. Renowned for its polychromia, the maison's most expressive pieces bring together multiple gemstones in compositions that prioritize contrast and balance over uniformity, creating a visual language that is immediately and unmistakably their own. Oval cabochon pink tourmalines and amethysts set directly into an 18K yellow gold curb chain - alternating warm pink against deep purple, the color running the full length of the necklace. Circa 1980s.