HS stands for horizontally set, meaning prongs secure the nanosital gem parallel to the shank. This allows light to freely enter from all angles for maximum sparkle and fire. By not obstructing the crown, HS settings showcase nanosital's brilliance. The discreet prongs keep the focus on the center stone itself. Simple solitaires or ornate surrounds work beautifully with HS nanosital pieces. Round, cushion, emerald cuts and more look stunning when horizontally set.