Leon Nussbaum, our London silversmith, handcrafts this pair of sterling silver earrings with a matrix of iridescent white opal. The rainbow of this fiery gem is produced by the diffraction of white light through a microstructure of silica spheres. These cubic zirconium accented opal earrings will appear to flicker and change with every movement of the wearer. Each earring is approx. 0.75 inches long, posts. Handcrafted for Uno Alla Volta, from the heart and hands of the artisans. Click Here for tips on caring for your sterling silver jewelry. Made in England.