SQ, meaning square cut, represents crystal glass fashioned into symmetrical square shapes defined by right angles. Rows of trapezoid and triangle facets are aligned in perfect symmetry. As light travels down these mirror-like planes, SQ crystal releases exceptional brilliance. The cut’s straightforward geometry frames crystal with elegance, making enduring solitaire jewelry. SQ cuts also make bold cocktail statement pieces. For crystal glass’s flawless clarity, the square is the optimal shape.