Sardonyx is the same stone as onyx, a banded agate with regular and uniform stripes. Onyx has a black base, sardonyx has a brown base. Like most agates, sardonyx and onyx are often dyed for color enhancement and uniformity.
Preciosa Ornela rocaille seed beads are by far our most popular and versatile seed bead available. Preciosa Ornela rocaille seed beads are of superior quality, machine cut, and are highly valued for their use in bead stringing, bead weaving, embroidery and much much more! Preciosa seed beads are proven to be of the upmost value, and demonstrate the highest level of shape consistency.