The Knockout Collar features a brilliant-cut gemstone suspended elegantly from a bold link chain, secured with a signature DD toggle. Designed for versatility, the gemstone charm can be removed, and the piece can be styled as a lariat, worn front to back for multiple striking looks. Gemstone: Rainbow Moonstone (Semi-Precious). Our semi-precious gemstones are rare, ethically sourced and hand cut from naturally occurring materials, giving each individual stone its own unique color. Note: stone color per piece may vary. Material: DD Signature Gold Plated Over High-Quality Brass. Length: 14 - 19" (Adjustable) Gemstone Diameter: 22mm