Smooth and rounded, gemmy and bright rough diamond octahedron. The coloring on this octahedron is beautiful - bright white and full of sunlight. It appears that this stone may have been exposed to water for a period of time in its formation, which is what gave it the smooth gemmy look, It has lovely surface patterning of concentric triangles and trigons when looked at closely. Internally this stone is clean and clear and flawless.