PS refers to princess square cut crystal glass, a modish cut with cropped corners. This adapted square shape has four beveled sides meeting at sharp points. The trimmed corners create the illusion of greater spread. PS cutting retains carat weight normally lost in emerald cuts. The orderly geometric facets display crystal’s impeccable clarity. When set as solitaires or accents, square princess cuts project a contemporary flair. For modern jewelry fashions, no shape shows off crystal better than the princess cut.