The contemporary halo rose to prominence in the 1920s. The art deco movement gave rise to the style's clean, geometric lines, decorative detailing, and dramatic flourishes. Halo engagement rings have been in and out of favour throughout the last century. Throughout the decade, the look became increasingly popular. From Natalie Portman to the Duchess of Cambridge, a plethora of celebrities have chosen halo, or cluster design, engagement rings. From east-west settings, with their sleek, sideways facing orientation, to the twin lines of a split shank engagement ring, to the effortless natural symmetry of a bypass setting, new setting types are breathing new life into old halo styles. A classic halo style with a simple straight setting cannot compete with modern settings for airiness, freshness, and harmony.