Signature Knockout Pendant Midnight Blue Dean Davidson Jewelry Shop Dean Davidson Online Nordstrom Signature Pav Knockout Pendant Dean Davidson Jewelry DeanDavidson.com Signature Midi Knockout Pendant Labradorite Dean Davidson Jewelry Signature Knockout Pendant Rainbow Moonstone Dean Davidson Jewelry Signature Knockout Pendant Midnight Blue Dean Davidson Jewelry. The Signature Midi Knockout Pendant features a multi faceted, brilliant cut gemstone suspended on a fluid box chain. The silicone slide closure allows you to gently pull the chain and adjust it to your desired length. Length: 18" 45cm (adjustable)Gemstone Diameter: 7mm Gemstones: Midnite Blue Man Made (Tanzanite) Labradorite Semi Precious Semi precious gemstones are custom cut from minerals and other natural materials, giving each stone a unique colour. Man made gemstones are crafted from high quality materials with a lower environmental impact than their mined equivalents.