Los Castillo design bracelet with highly polished black obsidian overlaid with fine .970 silver in a swirling pattern. This bracelet will go with everything from business attire to casual weekend wear. Black never goes out of style. This bracelet has been faithfully reproduced in fine 970 silver by Gildardo Juarez who is a master silversmith and an instructor of the art. His grandfather worked for the legend Fred Davis and he follows in the tradition of high grade workmanship.