OCT represents octagon cut synthetic quartz gemstones. As the name implies, octagon cuts have eight sides and sharp, defined corners. The broad facets and wide table produce excellent brilliance and light dispersion. OCT synthetics are optically balanced to provide bright, colorful flashes. This versatile cut works with square, rectangular, and triangular shapes. Stones may have a total of 48 to 64 facets. OCT is an ideal cut to show off striking hues like violet, green, and orange synthetic quartz. Despite their sharp corners, OCT synthetics have good durability due to their hardness. The precisely angled geometry of octagon cuts gives them a clean, modern look. OCT quartz serves as a bold center stone or fashionable accent in jewelry designs from contemporary to vintage.