Beads measure about 9mm to 14mm in diameter. These gorgeous offerings show off a rich blue color palette familiar to fans of natural Turkish Chalcedony. These nuggets are broadly coin or oval in shape with a large 2mm drill hole that maximizes their versatility. Fans of high-quality large hole gemstone beads should jump on these Jewelry Design staples, perfect for necklaces, earrings, bracelets and more.