Dean Davidson Signature Pave Knockout Studs & Pendant Combo - Please read Desc

My wife has had both items for a couple of years. Per the pictures, the color looks to have faded or tarnished. Not sure if they need to be cleaned or the reason why. Selling them as is…..as a combo. Earrings - per the website: A smaller version of our bestselling Knockout Studs, these effortless medium sized studs are adorned with a radiant pavé set. Gemstone: Cubic Zirconia (Man-Made). These expertly-cut gemstones are intricately set by hand, catching the light as they flow across brushed metal. Metal: DD Signature Brushed Gold Plated Over High-Quality Brass. Diameter: 7mm / 0.27 inch Weight: 1.2g / 0.04oz per earring Necklace - per the website: Inspired by the best-selling Signature Midi Knockout Studs, the Signature Pavé Knockout Pendant features brilliant, pavé-set cubic zirconia suspended on a fluid, adjustable box chain. Gemstone: Cubic Zirconia (Man-Made). These expertly-cut gemstones are intricately set by hand, catching the light as they flow across brushed metal.