Sterling Silver Pearl Choker with Heart Freshwater Pearls – 15.5”This sweet and delicate necklace is perfect for everyday wear and even sweeter for Valentines Day. It features a mix of 3 mm and 4 mm sterling silver pearls with adorable heart shaped freshwater pearls placed throughout. The 15 length sits beautifully as a choker, and the extender lets you adjust it just right. Every necklace has its own unique layout, making each one special. 15. 5 necklace with extender (adjustable) 3 mm + 4 mm sterling silver