DIAMOND TERMS GLOSSARY

Sell Diamonds in the United States
  • FacetFlat, polished surface on a finished diamond
  • Faceted GirdleA girdle which has been polished with a series of flat facets
  • Face-up colorApparent color of a diamond when examined face up, (The way it will be mounted into jewelry)
  • Fancy ColorDiamonds which fall outside of the D-Z color range. Fancy colors include fancy yellow, fancy red, fancy blue, fancy green and fancy pink, among others. Fancy color diamonds are typically worth more than those diamonds in the D to Z color range, with blues, greens and reds typically being the most valuable and rare
  • Fancy ShapeThis term is used for all diamonds which are not round in shape. These include emerald cut, cushion, radiant, Asscher, oval, marquise, pear and princess cut
  • FeatherCleavage or Fracture within a diamond. These are considered inclusions and usually have a whitish appearance. Their presence will affect the clarity grade and value of a diamond
  • FinishQuality of a diamonds polish, the condition of its girdle, and the precision of the cut. On diamond grading reports, Finish is broken down into two gradable categories, Polish and Symmetry
  • FireThe effect seen within a diamond when light is dispersed into its spectral colors. A well cut diamond will exhibit fire
  • Fish EyeThe term for a shallow cut diamond in which a circular gray reflection on the girdle appears through the table when looking at the diamond face up. This is the result of a poor cut and will negatively affect the diamonds value
  • FlawAn inclusion within a diamond
  • FlawlessThe clarity grade given to diamonds with no visible inclusions or blemishes when viewed by a 10x loupe or microscope
  • FluorescenceEmission of visible light by a diamond when it is stimulated by ultraviolet radiation. High levels of fluorescence can cause a diamond to appear hazy and will negatively affect its value. See Fluorescence
  • FractureChip or break on a diamond
  • Frosted GirdleNormal appearance of an un-polished, un-faceted diamond girdle