Peruvian opal and fresh water pearl necklace.

Bezel set chard pendant on a lapis lazuli beaded chain.

Turquoise and red coral bead necklace with silver bali bead embellishments.

Turquoise with carved red coral focal bead.

This is the back side of Lea Anne's Koi Pond bead.

Shibuichi is an alloy of copper and silver. The word means "one-fourth" in japanese, which refers to the proportions of one part silver to three parts copper. Lea Anne Hartman is an artist that designs and handcasts shibuichi beads and pendants. She does silver work as well. I own a this bead from her Koi Pond series.