This piece is made with Stealth Sterling Silver, 14K Yellow Gold fill wire, and the centerpiece is a round Turquoise Cabochon.
The Black Wire or Stealth Sterling, as I like to call it, is made with Sterling Sliver process though patination. I use simple chemistry which speeds up the oxidation process of the silver and turns it black. The black color is not permanent, eventually the object will adapt to the wearer and the black will transform into shiny silver on the high spots.
This ring can be stretched up one full ring size, but that is the only adjustment that can be made.