Swarovski 20mm Ball Prism & 2 Lily crystals, Clear Prism with Strass Logo Engraved 20mm=.79 inches Logo etched for authenticity Beautiful Sparkle Great for Weddings, Baby shower, Christmas Tree Decorations, Chandeliers, Art Projects, Jewelry Making, Necklaces, Great Gift for House warming and Suncatcherst Bottom Crystal is 20mm and octagons are .55 inches