This necklace is handmade from a freshwater pearl and sterling silver chain, giving it a unique and eye-catching look. Adding an extra level of sophistication and style, this necklace is sure to become the highlight of any outfit. Details. Length: 18". Metal: Sterling Silver. Positively Conscious. We've partnered with Greenspark, a climate change program that allows MHART to plant a tree or remove one piece of plastic from the ocean for every website purchase.