The fruit of the Dwarf Ruby grapefruit is of an excellent quality and sweetness and the skin that covers the Dwarf Ruby grapefruit is very thin and bright. The pulp of the Dwarf Ruby grapefruit is a distinctive red but as the grapefruit tree ages the inside color of the grapefruit interior will fade as the tree matures. Sometimes the fruit of the Dwarf Ruby Grapefruit tree will grow to an enormous size, almost one pound each.