An adjustable band ring includes a band formed by threading a thread through a thread hole provided on each of individual jewel or precious metal beads, a chain-like band formed by joining individual sub-chains made of precious metals, or a ring band formed by joining individual sub-rings made of precious metals. The ring further includes a band retainer on the base end of the band for holding the side of a middle portion of the band that has completely been wound around the finger, a hook on the forward end of the band extending beyond the band retainer and adapted to engage the side of the middle portion of the band, and a plurality of individual jewel beads mounted on the side of the band retainer that will be located on the upper face side of the band retainer when the ring is mounted on the finger.