Size S: Wrist Circumference: Approx. 6.3 - 6.7 inches (16 - 17 cm), Logo Engraving, 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 natural stones, there may be slight scratches or chips.