HS, or horizontally set, refers to how the prongs hold a synthetic quartz gemstone in place. Horizontal prong settings allow maximum light to enter from all angles, showcasing the stone's brilliance. The linear prongs don't obstruct the table facet where crushed ice effect and other optics occur. With HS settings, inclusions are less visible. Designs range from simple four-prong solitaires to elaborate halos and multi-stone arrangements, all with horizontal prongs. This versatile setting works for round, oval, square, and other cuts. HS settings in white metals let colorless or tinted synthetics shine with rainbow sparkle. They also make colored quartz pop against the contrasting metal. For weddings and fashion jewelry alike, HS settings optimize synthetic quartz's natural beauty.