Size L: Wrist Circumference: Approx. 7.1 - 7.5 inches (18 - 19 cm), Logo Engraved, Crystal 0.5 inches (12 mm), White Agate 0.4 inches (10.8 mm), Cut Glass 0.3 inches (8 mm), Rondell 0.3 inches (8 mm), Due to the nature of the natural stone, there may be slight scratches or chips.