Inner diameter: approximately 15.3 cm Garnet: approximately 11.5 mm Rose quartz: approximately 23.2 mm Please allow for some margin of error. The garnet has a dark red-black color and is opaque. The top part is rose quartz with a glossy, deep color. As these are natural stones, there may be cracks, inclusions, natural indentations, black spots, color unevenness, fine scratches, etc. Natural stone Natural stone bracelet Design bracelet Garnet Rose quartz Power stone