From Nordstrom
This fluid snake chain necklace plated in 18-karat gold endows your ensembles with essential shine. 15 1/2" length; 3" extender Lobster clasp closure 18k-gold plate Imported
From Bloomingdale's
Ettika Brooklyn Flat 18k Gold Plated Snake Chain Necklace, 15.5 + 3 extender-Jewelry & Accessories
From Macy's
A simple necklace every woman should have in her collection.