Double layer necklace . Genuine Onyx & Genuine mother of pearl , shiva eye and abalone round charm on second layer . stainless steel chains ( first layer is 15 inch and second is 18.5 , but I also added a two inch extention on the back yo adjust ) If you need different size lmk . Handmade by me 🙂Iridescent colors . Surf / surfer / beach / boho / bohemian / hippie / summer / mermaid / ocean / boho chic / gem / gems / gemstones & shells / natural healing stones / gypsie / stylish / dainty /gift