Diamonds are among nature’s most precious and beautiful creations.
Colorless diamonds are scarce—most diamonds have tints of yellow or brown.
Factors used to describe diamonds: Clarity, Color, Cut, Carat Weight
The rarity of one or more of the 4Cs can affect value.
The crystal shape of a gem diamond is often the octahedron.
Trigons—little triangular depressions—occur only on octahedral faces.
Diamond’s growth marks help experts separate diamonds from simulants.