Beads measure about 4mm to 5mm in diameter. These exquisite offerings show off an unmatched green and blue flash emanating from light and clear bead bodies to astonishing effect. Fans of Ethiopian Opal will love these exceptionally flash-filled pieces, curated in strands to match for flash tone to appeal to seekers of the finest the gemstone has to offer. Jump on these unique beauties ideal for catching the eye in necklaces, earrings and much more! Beads are optimal quality, A Grade.