Haworthia cymbiformis variegated
This stemless, evergreen succulent is also known as "Cathedral Window Haworthia" for its glassy leaves. Variegation appears in light-green and white stripes. White to very pale pink flowers bloom up to 8 inches tall.
It is relatively slow growing and thus an excellent houseplant, happy in a variety of containers so long as there is drainage of some kind. It won't grow taller than 3 - 5 inches but do spread via small clusters.