Vintage Sarah Coventry Gold Tone Omega Chain Choker Necklace. The minimalist design features a chunky omega chain in a beautiful gold tone metal, giving it a slightly stretchy and flexible feel. The extender allows you to adjust the length to suit your personal style. With a simple hook clasp, this choker necklace measures 11 inches in length with an additional 5 inches in extender, making it perfect for any neckline. In good condition, this vintage piece is a timeless addition to any jewelry collection.