Size 10 Black Onyx Inlay with Bejeweled Cut Out Design Marcasite Ring This Ring makes the perfect gift. Excellent Craftsmanship Material :Genuine .925 Sterling Silver & High Quality Marcasite Information: -Weights and dimensions are approximate.-MOP, abalone & pink shell made of genuine mother of pearl, all other Inlay types reconstituted or simulated. Not all styles have all Inlay colors Available. Other options available.