Sterling Silver 4.5mm 18 Inch Herringbone Chain Necklace [Jewelry] (I-1014) This 4.5mm herringbone necklace measures 18 inches. High Quality 925 Sterling Silver Jewelry! Great Quality Jewelry! You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!