'Duet' is a white beautyberry cultivar that features a showy autumn display of white berry-like fruits on a rounded shrub clad with white-margined medium green leaves. This is reportedly the first stable variegated beautyberry. It is an upright-rounded, deciduous shrub that typically grows to 4-6' tall with a slightly wider spread. White flowers bloom along the stems in early summer (June-August). Flowers are followed by fleshy, globe-shaped, white, berry-like fruits that mature in expanded axillary clusters along the stems in fall. The berries are very attractive at the peak of ripeness (October), and blend well with the variegated elliptic to ovate-elliptic leaves (to 3" long). Fruits are attractive to birds.