Gorgeous one of a kind necklace with this fabulous magical blue with sparkle of dark electric druzy peaking through. The materials are oxidized sterling silver, fine silver bezel, 18k, and azurite nodule slice, with sterling silver chain and a lobster clasp. The chain is 18″ long with a 1 3/4″ extender. The side of the pendant is 1.75″ x 1 5/8″. Please note the fine silver bezel can take on a golden glow from the oxidation process. For care please do not use a polishing cloth as that can alter the patina. You can swish in warm sudsy water, rinse and dry.