40mm x 30mm x 9mm. These have nice large facets. These are mined in Brazil. Yummy colors within each bead. These beads are large and would make great use as a focal bead if used individually. If you like Mexican fire opal, you will love these. 10 beads per strand. Unbelievable new low price. Get them while they last. These beads were originally $48 per strand so it's a very nice deal at this price.