OCT stands for octagon cut crystal glass, a versatile shape with eight long facets. The broad planes produce substantial brilliance through multiple reflections. Each facet is carefully angled to balance light return. Sharp defined corners contrast with the wide table and open silhouette. OCT crystal glass sparkles brightly in hues like vivid blue and purple. The symmetrical geometry creates a clean, contemporary look. Despite its straight edges, the OCT cut retains excellent durability.