This is a Gunmetal Crescent Moon Mood Color Change Hand Made Necklace. It comes with an 18 inch gunmetal chain. If you need the chain longer or shorter please send me a message with your specifications. This necklace handmade by me! It's impossible to capture the wide range of colors it has but it goes anywhere for a black/brownish to a bright blue/purple and EVERYTHING in between! The acrylic stone is set in a 12mm setting. Please note that mood stones in general aren't meant to be submerged in water. All mood jewelry comes with a small chart explaining what the colors mean! I offer free shipping to the United States, for international I do offer combined shipping. Any questions please send a message! Thanks for looking :)