As brief as possible, this is the dimensions and facet angles of a finished diamond, and the relationship between them.

 

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See also: Crown Angle, Culet, Cut, Cut Grade, Depth, Depth %, Finish, Girdle, Ideal Cut, Leakage, Length-to-Width Ratio, Light Performance, Lower Girdle Facet, Make, Measurements, Pavilion, Pavilion Angle, Pavilion Main Facet, Star Facet, Symmetry, Table, Table %, Tolkowsky Cut.