This showstopping Marcasite and Onyx Layered Necklace gives you an elegant, eye-catching look no matter the occasion. Crafted with genuine Marcasite, Onyx and Sterling Silver, its three layers create a beautiful statement piece that is sure to turn heads. Plus, the necklace is adjustable 16" - 18" with a 2" extender for the perfect fit. Dare to stand out with this exquisite necklace!