rétablir la symétrie et polir

CONT: Describe the traditional polishing sequence: a) crosswork the diamond: - follow company policies and cut specifications for the angles and indices; - block the diamond: ... - lap the diamond: re-mark the girdle for the pavilion; smooth: 4 corners; 4 pavilion facets; re-mark the girdle for the crown; smooth: 4 corners; 4 bezels; table; if a facetted culet is desired, create the facet after the second corner is smoothed; ensure the crown and the pavilion facets are in alignment; b) brillianteer the diamond: ...