Opal, considered ''the queen of gems,'' can flash patterns of color representing every hue of the rainbow. Believed by ancient people to actually contain fire, opal has long been ascribed many mystical and healing properties. Each sterling silver cat necklace is inlaid with a matrix of iridescent white opal by Leon Nussbaum, our London silversmith. Each opal cat necklace will appear to flicker and change with every movement of the wearer. 18 inches long with a 1.25 inch pendant, spring ring clasp. Handcrafted for Uno Alla Volta from the heart and hands of the artisan.