The name 'dichroic' comes from a Greek word meaning 'two colors'. The main characteristics of dichroic glass are the transmitted color, where light passes through the glass, and a completely different reflective color. Because dichroic glass charms are individually handmade, each piece will be unique with slight variations in color and pattern. Measuring approximately 13mm in diameter with a 4mm sterling silver center, it is interchangeable as well as compatible with Reflections and other popular 3mm width bead style bracelets and necklaces. B9494 Hand-blown dichroic glass with a solid sterling silver core Measures roughly 13mm in diameter with a 4mm core Allow for slight variations in color and pattern Fits most 3mm bracelets and necklaces Includes a custom Black Bow Jewelry Company gift box