3X, EX-, VG+, and VG- are the actual range values used in the search:

  •  3X = Cut, Polish and Symmetry are all Excellent
  • EX- = Cut is Excellent while Polish and Symmetry can be Excellent, Very Good, Good, Fair or Poor (but all 3 cannot be Excellent).
  • VG+ = Cut is Very Good while Polish and Symmetry can be Excellent or Very Good.
  • VG- = Cut is Very Good while Polish and Symmetry can be Very Good, Good, Fair or Poor (but all 3 cannot be Very Good).

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