How can I tell if my Waterford Crystal piece is authentic?

Authentic Waterford Crystal usually carries an acid-etched mark that reads “Waterford” or “Waterford Ireland.” The mark may appear faint and often requires light to spot. Older pieces might show a foil label instead of an etched stamp. Real examples feel heavier than pressed glass and show sharp cut edges rather than rounded ones. Light passing through genuine crystal produces bright reflections and rainbow effects. Bubbles or cloudy areas suggest lower-grade glass. Packaging, paperwork, and purchase source help with verification. Many collectors compare suspected pieces with known originals to confirm quality, weight, and cutting style.