The Marble Berry

This perennial herb is the world´s shiniest and most colorful organism on Earth and its color doesn´t fade! Researchers found samples in Herbariums which were collected in the XIX century, and they look just as bright as nowadays´ berries!
The shiny blue berries of the tropical Pollia condensata plant rely on their looks, not nutritional content, to attract birds to spread their seeds.
Unlike in most fruits in Pollia condensata the cellulose is layered and it reflecting more light (mainly blue) than any other living organism...Notably also, each individual cell generates color independently producing a pointillist effect! 
File:Pollia.jpg
It inhabits densely forested areas of Africa