Abstract: Devices and methods are disclosed for illuminating gemstones on fashion accessories a variety of colors. The device may process certain inputs to determine the color emanating from a light source that will illuminate the gemstone. The device may be integrated with a mobile application that wirelessly controls the color of the gemstone through a wireless connection to a light source. The device advantageously will allow input from the microphone or camera of the mobile device to change the color of the gemstone based on the ambient light or sound.