Diatom-inspired pattern, opal-blue enamel, and a clean semicircle shape. Daria Salus layers powdered glass over copper and kiln-fires each pendant by hand in the Bay Area. Finished on an 18-inch oxidized silver chain. The semicircle shape gives the tiny diatom-inspired pattern a crisp, contemporary frame. In Enamel Opal Blue Diatom Semicircle Pendant, Daria Salus lets the shape, color, and materials carry the design.