These 12mm Round beads are handmade, one-by-one in Venice, Italy, under the flame, and are referred to as "Lampworked" beads.
I personally go to Venice, and Murano, Italy to work with my glass artisans, to make sure I get the beads I want for my designs.
The beads in these earrings are 12mm round, with a base color of black Murano Glass, then 24 Karat Gold Foil, and brightly colored Millefiori (thousand flowers), multicolor mosaic canes.
The earrings are accented with black double cone crystals, gold metallic bead caps, and your choice of gold filled wires or posts. Dangle clips are also available.
I hand, wire wrap, all my earrings several times, to make sure they do not come apart from the wire or post or clip.