Plants are medium large, moderately upright to spreading. Stems are moderately thick and uniformly green. Leaves are large, broad, and dark green and have short pubescence on upper surface of midrib. Petioles are green and sparsely pubescent. Buds are green with slight red-purple at base.
Flowers are few with medium large, white corolla and yellow-orange anthers.
Tubers are round to short oblong, smooth with a shallow to moderately deep bud-end. Skin is smooth but may have small scaly patches. Gemchip is higher yielding than Norchip and similar to slightly higher in specific gravity. It is resistant to Verticillium wilt and growth cracks. It is susceptible to scab and shatter bruise and moderately susceptible to hollow heart and blackspot.