Sterling Silver Gold Plated Cubic Zirconia Initial Pendant Necklace, 18" Necklace Measurements: Diameter- .5" (12.7mm) Chain Length- 18" (457.2mm) High quality, Gorgeous Initial Necklace! 18" Sterling Silver Chain Included. Comes in a Lovely, Complimentary Jewelry Box! A Certificate of Authentication is Included for Your Convenience.