Blue fire opal iridescent gemstone glass boho necklace . Charm is set in Sterling silver overlay . Stamped 925 on the inside of the charm bale . Chain is Stainless steel with maille hoops detail on the sides . Necklace is 18 inch long ( not a double layer necklace but if you want a different length chain lmk it is handmade and I could make any size you prefer ) . Chain is nickel free , allergy free , hypoallergenic , no itching . Man made blue fire opal stone ( You will get exactly the one in the pictures ) ( only one available / One of a kind necklace ) TAGS : Gem / gems / #gemstones / crystals / stones / boho / #bohemian / bohochic / goth / gothic / victorian / queen / viking / celt / celtic / moon child / witch / fairy / mermaid / unicorn / rock & roll / Rocker / rock chic / biker / gift / Stylish / trendy / festival / #silver choker necklaces / luxury / casual / every day jewelry / night out / date night / going out / party / clubbing / medieval fair / renaissance / Hippie / gypsie / yoga / #natural healing stones & crystals / zen / shinny / rainbow colorfull blue stones / sparkly