Shield Cut

The Term Shield Cut, as suggested by Tillander, indicates all historical triangular cuts. The basic blueprint comes from half an octahedron: a was.

When an octahedron is cleaved through the middle, each half forms a stone with a large, flat bottom and a triangular top with slightly sloping sides. When the stone is mounted with the triangle facing up the stone resembles the shape of a shield; one of the most prevalent emblems of heraldry and warfare.

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