This necklace is a fun fantasy piece similar to the kind Princess Garnet wears in the game Final Fantasy IX. I definitely wore it a ton! But there's still a lot of life left and it's time for someone else to bring new energy to it :) I've had it for just a little over one year. I believe the chain is an allergen-free metal, as I am very sensitive to metals and this one gave me no adverse reactions. more info from the original seller: Beautiful rainbow quartz crystal wrapped in silver wire. Inspired by Final Fantasy 9 Video game. Perfect for any crystal lover as well. Great piece tor any cosplay, costume, or renaissance play. Makes a lovely item for your significant other or as a present for yourself. Necklace is approximately 14 -16 inches with extender. Hypo allergenic. Made for those with metal allergies. Safe for giving when you don't really know if they have a metal allergy. I ship from a smoke-free pet-free home!