A diamond that has a single color description of orange is the most elusive of all of the color diamonds. The majority of dealers and collectors have never seen one. The orange is due to the concentration of Nitrogen atoms in the lattice structure of the diamond. More common, but hardly abundant, are orange diamonds with modifying colors such as yellow or brown. Due to the rarity of a true orange diamond prices, are comparable to the rare blue diamond. The orange diamond is prized for its beauty and rarity and is one of the most sought after color diamonds.