These El Cubo beaded beads are
tiny, made with 3mm roundelle gemstone
beads. The Peruvian blue opal and amethyst (on the inside) beaded
bead is just 13mm at its smallest diameter and 17mm at its
largest. So is the grey pearl and glass bead. The ruby and
citrine bead is all of a millimeter larger. The one made with
lentils is all glass, and measure 15mm and 25mm.