After experiencing the tropical waters of Hawaii, full of rainbow colored fish and vivid turquoise and indigo waters, I had to use this magical Boulder Opal for something special. Set in sterling silver and surrounded by a cluster of silver pebbles that feature emerald, sapphire, amethyst and tourmaline sparkles, this one of a kind necklace takes you to far off places where rainbow fish live!Necklace is 18" with oxidized heavy cable chain.