Diamond type
Diamond type is a method of scientifically classifying diamonds by the level and type of their chemical impurities. Diamonds are separated into four types: Type Ia, Type Ib, Type IIa, and Type IIb. The impurities measured are at the atomic level within the crystal lattice of carbon atoms and so, unlike inclusions, require an infrared spectrometer to detect.
Pink Panther jewel
Type II diamonds have almost no nitrogen impurities in them. Their coloration is due to structural anomalies caused by Plastic Deformation during crystal growth. The intense pressure changes the lattice structure of diamonds and leads to the formation of pink, red, and brown diamonds. Only one of the 66 largest diamonds in the world is pink. When Ben Affleck gave Jennifer Lopez a pink diamond solitaire engagement ring, traffic to Web sites that sold pink diamonds increased by around 300 to 400 percent.