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Design 417   Concave Center With Raised Flat Center Ring

This profile has a Concave Center with a raised center flat profile.

This profile works well for stone set rings with a lower center to protect the design or stones.

​This design has a huge range of variations due to the number of variables.


  • Any bore can be used on this design.
  • Grooving Cycles can be added.
  • Mill designs can be added
  • Stone milling can be added


The key features that can be changed are :


  • RING SIZE
  • WIDTH
  • THICKNESS
  • CENTER THICKNESS
  • EDGE RADIUS OR EDGE CHAMFER
  • SIZE OF RADIUS OR CHAMFER
  • FLAT WIDTH
  • HEIGHT OF FLAT
  • ANGLE FROM CONCAVE RADIUS TO FLAT