The Line of Prometheus | Matte Polished Groove Baguette Diamond Eternity RingModern Wisdom. Eternal Light. Striking in its minimalism, The Line of Prometheus channels bold intellect and refined symbolism. A singular horizontal baguette cut diamond sits at the heart of a brushed matte band, intersected by a sharp polished groove a clean line of brilliance that evokes a divine spark. Inspired by Prometheus, the Titan who brought fire and progress to mankind, this design represents the pursuit of truth, the power of knowledge,