Found in Australia and considered to be the most valuable and rarest opal of all, black opal appears dark from afar, but as you draw closer its ethereal fire can be seen. Leon Nussbaum, our London jeweler, hand-sets these precious stones into gleaming British sterling silver to create these beautiful earrings, featuring a matrix of flashy black, truly one-of-a-kind. Accented with diamonds. Handcrafted exclusively for Uno Alla Volta, from the hearts and hands of artisans. Approx. 1.25'' long, posts.