Magic Metal Mermaid Siren Necklace Vintage Antique Victorian NK36 Steampunk Style Charm Pendant Fashion Jewelry Ships from the USA Unique mermaid pendant necklace. Etched details and antiqued finish. Pendant Size: 2.25 inches by 1.75 inches. Length of Chain, Open from Clasp to End: 25 inches Makes a perfect gift. Search Magic Metal Jewelry for more jewelry styles.