J. Crew Black and Opalescent Crystal Cluster Statement Necklace Beautiful black and opalescent gemstones set in gold hardware. Lobster clasp closure and 3" extension provides the option for a custom fit. Approximate Measurement: 30" (including 3" extension) This necklace is in excellent, like-new condition with no damage or flaws. Comes from a non-smoking home. Packaged with care, and ready for gifting!🎁🥰 -All my jewelry comes wrapped in decorative tissue and tucked inside a mesh reusable jewelry bag.