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Plotting Diagram - A schematic diagram included on the EGL USA Diamond Certificate that illustrates the facets (printed in black) of a diamond and the approximate location and type of internal and external characteristics (printed in red and ...
The diamond certificate records all the relevant information pertaining to the diamond, including carat weight, color grade, clarity grade, measurements and physical properties as well as plotting diagrams.
E.G.L - History ...
 See also: Clarity grade, Jewel, Color grade, Carat, Color
  
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