Due to your requests - Leon Nussbaum brings dazzling opal to an open collar necklace. This sterling silver and opal collar necklace is inlaid with a matrix of iridescent white opal by Leon Nussbaum, our London silversmith, and hallmarked for a guarantee of purity. Opal, considered ''the queen of gems,'' can flash patterns of color representing every hue of the rainbow as they flicker and change with every movement of the wearer. Believed by ancient peoples to actually contain fire, opal has long been ascribed many mystical and healing properties. This opal collar necklace is masterfully handcrafted exclusively for Uno Alla Volta, from the heart and hands of the artisan. Necklace measures 16 in long and is adjustable.