DIAMOND TERMS GLOSSARY

Sell Diamonds in the United States
  • DealerAny person acting as an intermediary between diamond suppliers and retail outlets
  • De BeersThe largest Diamond Supplying and mining company in the world
  • DepthMeasurement of a diamond from its table to culet (top to bottom) usually done in millimeters
  • Depth PercentageThe depth (height) of a diamond, divided by its diameter or average width. An ideal depth percentage results in the diamond being more brilliant
  • DiamantaireFrench term used for a knowledgeable or experienced person in the diamond industry
  • DiamondMineral composed of carbon crystallized at extremely high temperatures and pressures. It is also the hardest natural material known to man, registering a 10 on the Mohs scale. Diamonds are also an excellent conductor of heat
  • Diamond CutterGeneric name for those involved in the manufacture of polished diamonds. They also conduct repairs on diamonds which have been damaged
  • Diamond Grading ReportReports written by a gemological lab detailing the characteristics of a specific diamond. Informally called “certificates”
  • Diamond PaperThe unique, grease resistant papers in which loose diamonds are kept by dealers
  • Diamond SimulantAny material which is not diamond or synthetic diamond, but which simulates a diamond’s appearance and is used in its place. Common simulants include synthetic Cubic Zirconia, Gadolinium Gallium Garnet, Synthetic Spinel and Yttrium Aluminum Garnet
  • DispersionSeparation of white light into spectral colors within a diamond
  • Drag LinesScratches caused during polishing when minute fragments, usually originating from surface reaching inclusions, are inadvertently dragged along the surface of the diamond