"Staround"

Fred W. Van Sant



Angles are for corundum.
Index settings are for an 80 tooth gear.
Preform should be perfectly round with rolled edges.

Crown

  • Cut 10 facets at 37°:, index
    4, 12, 20, 28, 36, 44, 52, 60, 68, 76.
  • Cut 10 facets at 10°:, index
    4, 12, 20, 28, 36, 44, 52, 60, 68, 76.
  • Cut 5 facets at approximately 7°:
    , index 16, 32, 48, 64, 80.
  • Cut 1 facet at 0°:.
    The shaded facets (set 4) may be
    left unpolished, or "frosted" to
    better define the star.
    For a higher crown and a smaller
    table, cut set 2 at 38°:.
  • Pavilion

  • Cut 20 facets at 41°:, index
    2, 6, 10, 14, 18, 22, 26, 30,34, 38,
    42, 46, 50, 54, 58, 62, 66, 70, 74, 78.
  • Cut 10 facets at 40.5°:, index
    8, 16, 24, 32, 40, 48, 56, 64, 72, 80.
    Cut these in the order listed.